diff --git a/ippisite/ippidb/templates/about-general.html b/ippisite/ippidb/templates/about-general.html
new file mode 100644
index 0000000000000000000000000000000000000000..1877a5f811ffcc4abf15c69c51a268fa3cc41371
--- /dev/null
+++ b/ippisite/ippidb/templates/about-general.html
@@ -0,0 +1,18 @@
+{% extends "about.html" %}
+
+{% block title %}inhibitors of Protein-Protein Interaction Database{% endblock %}
+
+{% block pagetitle %}GENERAL INFORMATION{% endblock%}
+
+{% block view_content %}
+<ul>
+	<li>Number of compounds: {{ compounds_count }}</li>
+	<li>Total number of binding data: {{ car_count }}</li>
+	<li>Total number of biochemical binding data: {{ bioch_car_count }}</li>
+	<li>Total number of cellular binding data: {{ cell_car_count }}</li>
+	<li>Number of proteins: {{ proteins_count }}</li>
+	<li>Number of families: {{ families_count }}</li>
+	<li>Number of PPI targets: {{ ppis_count }}</li>
+	<li>Number of bibliographic sources: {{ biblio_count }}</li>
+</ul>
+{% endblock %}
diff --git a/ippisite/ippidb/templates/about-pharmacology.html b/ippisite/ippidb/templates/about-pharmacology.html
new file mode 100644
index 0000000000000000000000000000000000000000..a71166c69edd48411f02bdfeaed21bc8b531db6d
--- /dev/null
+++ b/ippisite/ippidb/templates/about-pharmacology.html
@@ -0,0 +1,130 @@
+{% extends "about.html" %}
+
+    
+{% block title %}inhibitors of Protein-Protein Interaction Database{% endblock %}
+
+{% block pagetitle %}PHARMACOLOGY{% endblock%}
+
+{% block view_content %}
+<div class="row">
+	<div class="card col-sm-12 col-md-6">
+		<canvas id="pxc_by_test_type" style="width:300px; height:200px;"></canvas>
+	</div>
+	<div class="card col-sm-12 col-md-6">
+		<canvas id="bioch_tests_histo" style="width:300px; height:200px;"></canvas>
+	</div>
+	<div class="card col-sm-12 col-md-6">
+		<canvas id="data_per_ppi_family" style="width:300px; height:200px;"></canvas>
+	</div>
+	<div class="card col-sm-12 col-md-6">
+		<canvas id="cell_tests_histo" style="width:300px; height:200px;"></canvas>
+	</div>
+</div>
+<div class="row">
+	<div class="card col-md-12">
+		<canvas id="le_lle_biplot" style="width:300px; height:200px;"></canvas>
+	</div>
+</div>
+
+<script>
+
+	var biochTestData = {
+		labels: {{ biochemical_tests_count_by_name.labels|safe }},
+		datasets: [{
+			label: 'Number of activity test results',
+			backgroundColor: "rgba(70,130,180,0.6)",
+			borderColor: "rgba(70,130,180,1)",
+			borderWidth: 1,
+			data: {{ biochemical_tests_count_by_name.values }}
+		}]
+	};
+
+	drawBarChart('bioch_tests_histo',
+		biochTestData,
+		'Biochemical Tests',
+		'biochtest');
+
+	var cellTestData = {
+		labels: {{ cellular_tests_count_by_name.labels|safe }},
+		datasets: [{
+			label: 'Number of activity test results',
+			backgroundColor: "rgba(70,130,180,0.6)",
+			borderColor: "rgba(70,130,180,1)",
+			borderWidth: 1,
+			data: {{ cellular_tests_count_by_name.values }}
+		}]
+	};
+
+	drawBarChart('cell_tests_histo',
+		cellTestData,
+		'Cellular Tests',
+		'celltest');
+
+	var bindingDataPerPPIFamily = {
+		labels: {{ compounds_per_ppi_family.labels|safe }},
+		datasets: [
+			{
+				label: 'Number of binding data',
+				backgroundColor: "rgba(46,87,139,0.6)",
+				borderColor: "rgba(46,87,139,1)",
+				borderWidth: 1,
+				data: {{ binding_data_per_ppi_family.values }}
+			},
+			{
+				label: 'Number of unique compounds',
+				backgroundColor: "rgba(185,45,92,1)",
+				borderColor: "rgba(185,45,92,0.6)",
+				borderWidth: 1,
+				data: {{ compounds_per_ppi_family.values }}
+			},
+			]
+	};
+
+	drawBarChart('data_per_ppi_family',
+		bindingDataPerPPIFamily,
+		'Compounds and binding data available in iPPI-DB per PPI target'
+	);
+
+
+	var bindingDataPerPXC50Bins = {
+		labels: ['Biochemical', 'Cellular'],
+		datasets: [
+			{
+				label: 'pXC50>=8',
+				backgroundColor: "rgba(46,87,139,1)",
+				borderColor: "rgba(46,87,139,1)",
+				borderWidth: 1,
+				data: [{{cell_tests_pxc50_gte8}},{{bioch_tests_pxc50_gte8}}],
+			},
+			{
+				label: '8>pXC50>=7',
+				backgroundColor: "rgba(185,45,92,1)",
+				borderColor: "rgba(185,45,92,1)",
+				borderWidth: 1,
+				data: [{{cell_tests_pxc50_gte7_lt8}},{{bioch_tests_pxc50_gte7_lt8}}],
+			},
+			{
+				label: '7>pXC50>=6',
+				backgroundColor: "rgba(209,224,253,1)",
+				borderColor: "rgba(209,224,253,1)",
+				borderWidth: 1,
+				data: [{{cell_tests_pxc50_gte6_lt7}},{{bioch_tests_pxc50_gte6_lt7}}],
+			},
+			{
+				label: '6>pXC50',
+				backgroundColor: "rgba(242,202,255,1)",
+				borderColor: "rgba(242,202,255,1)",
+				borderWidth: 1,
+				data: [{{cell_tests_pxc50_lt6}},{{bioch_tests_pxc50_lt6}}],
+			}
+		]
+	};
+
+	drawHorizontalStackedBarChart('pxc_by_test_type',
+		bindingDataPerPXC50Bins,
+		'Distribution of the binding data across bins of activity in pXC50 units');
+
+	drawCompoundsBiplotChart('le_lle_biplot', preparePerFamilyBiplotData({{ le_lle_biplot_data | safe }}), 'pharmacology');
+
+</script>
+{% endblock %}
diff --git a/ippisite/ippidb/templates/about-physicochemistry.html b/ippisite/ippidb/templates/about-physicochemistry.html
new file mode 100644
index 0000000000000000000000000000000000000000..fe928ae4c64ebf0a507d8c58f5dfec73448decb1
--- /dev/null
+++ b/ippisite/ippidb/templates/about-physicochemistry.html
@@ -0,0 +1,193 @@
+{% extends "about.html" %}
+
+{% block title %}inhibitors of Protein-Protein Interaction Database{% endblock %}
+
+{% block pagetitle %}PHYSICOCHEMISTRY{% endblock%}
+
+{% block view_content %}
+<div class="row">
+	<div class="card col-sm-12 col-md-4">
+		<canvas id="fsp3_dist" style="width:300px; height:200px;"></canvas>
+	</div>
+	<div class="card col-sm-12 col-md-4">
+		<canvas id="mw_dist" style="width:300px; height:200px;"></canvas>
+	</div>
+	<div class="card col-sm-12 col-md-4">
+		<canvas id="chiral_dist" style="width:300px; height:200px;"></canvas>
+	</div>
+	<div class="card col-sm-12 col-md-4">
+		<canvas id="arom_dist" style="width:300px; height:200px;"></canvas>
+	</div>
+	<div class="card col-sm-12 col-md-4">
+		<canvas id="rotbonds_dist" style="width:300px; height:200px;"></canvas>
+	</div>
+	<div class="card col-sm-12 col-md-4">
+		<canvas id="haccept_dist" style="width:300px; height:200px;"></canvas>
+	</div>
+	<div class="card col-sm-12 col-md-4">
+		<canvas id="hdon_dist" style="width:300px; height:200px;"></canvas>
+	</div>
+	<div class="card col-sm-12 col-md-4">
+		<canvas id="tpsa_dist" style="width:300px; height:200px;"></canvas>
+	</div>
+	<div class="card col-sm-12 col-md-4">
+		<canvas id="alogp_dist" style="width:300px; height:200px;"></canvas>
+	</div>
+</div>
+<script>
+
+	var fsp3Data = {
+		labels: {{ fsp3_dist.labels|safe }},
+		datasets: [{
+			label: 'Compounds in FSP3 range',
+			backgroundColor: "rgba(70,130,180,0.6)",
+			borderColor: "rgba(70,130,180,1)",
+			borderWidth: 1,
+			data: {{ fsp3_dist.values }}
+		}]
+	};
+
+	drawBarChart('fsp3_dist',
+		fsp3Data,
+		'Fsp3',
+		null,
+        'bar');
+
+	var mwData = {
+		labels: {{ mw_dist.labels|safe }},
+		datasets: [{
+			label: 'Molecular Weight',
+			backgroundColor: "rgba(70,130,180,0.6)",
+			borderColor: "rgba(70,130,180,1)",
+			borderWidth: 1,
+			data: {{ mw_dist.values }}
+		}]
+	};
+
+	drawBarChart('mw_dist',
+		mwData,
+		'Molecular Weight',
+		null,
+        'bar');
+
+	var chiralData = {
+		labels: {{ chiral_dist.labels|safe }},
+		datasets: [{
+			label: 'Number of chiral centers',
+			backgroundColor: "rgba(70,130,180,0.6)",
+			borderColor: "rgba(70,130,180,1)",
+			borderWidth: 1,
+			data: {{ chiral_dist.values }}
+		}]
+	};
+
+	drawBarChart('chiral_dist',
+		chiralData,
+		'Number of chiral centers',
+		null,
+        'bar');
+
+	var aromData = {
+		labels: {{ arom_dist.labels|safe }},
+		datasets: [{
+			label: 'Number of aromatic rings',
+			backgroundColor: "rgba(70,130,180,0.6)",
+			borderColor: "rgba(70,130,180,1)",
+			borderWidth: 1,
+			data: {{ arom_dist.values }}
+		}]
+	};
+
+	drawBarChart('arom_dist',
+		aromData,
+		'Number of aromatic rings',
+		null,
+        'bar');
+
+	var rotbondsData = {
+		labels: {{ rotbonds_dist.labels|safe }},
+		datasets: [{
+			label: 'Number of rotatable bonds',
+			backgroundColor: "rgba(70,130,180,0.6)",
+			borderColor: "rgba(70,130,180,1)",
+			borderWidth: 1,
+			data: {{ rotbonds_dist.values }}
+		}]
+	};
+
+	drawBarChart('rotbonds_dist',
+		rotbondsData,
+		'Number of rotatable bonds',
+		null,
+        'bar');
+
+	var hacceptData = {
+		labels: {{ haccept_dist.labels|safe }},
+		datasets: [{
+			label: 'Number of H acceptors',
+			backgroundColor: "rgba(70,130,180,0.6)",
+			borderColor: "rgba(70,130,180,1)",
+			borderWidth: 1,
+			data: {{ haccept_dist.values }}
+		}]
+	};
+
+	drawBarChart('haccept_dist',
+		hacceptData,
+		'Number of H acceptors',
+		null,
+        'bar');
+
+	var hdonData = {
+		labels: {{ hdon_dist.labels|safe }},
+		datasets: [{
+			label: 'Number of H donors',
+			backgroundColor: "rgba(70,130,180,0.6)",
+			borderColor: "rgba(70,130,180,1)",
+			borderWidth: 1,
+			data: {{ hdon_dist.values }}
+		}]
+	};
+
+	drawBarChart('hdon_dist',
+		hdonData,
+		'Number of H donors',
+		null,
+        'bar');
+
+	var tpsaData = {
+		labels: {{ tpsa_dist.labels|safe }},
+		datasets: [{
+			label: 'TPSA',
+			backgroundColor: "rgba(70,130,180,0.6)",
+			borderColor: "rgba(70,130,180,1)",
+			borderWidth: 1,
+			data: {{ tpsa_dist.values }}
+		}]
+	};
+
+	drawBarChart('tpsa_dist',
+		tpsaData,
+		'TPSA',
+		null,
+        'bar');
+
+	var alogpData = {
+		labels: {{ alogp_dist.labels|safe }},
+		datasets: [{
+			label: 'ALogP',
+			backgroundColor: "rgba(70,130,180,0.6)",
+			borderColor: "rgba(70,130,180,1)",
+			borderWidth: 1,
+			data: {{ alogp_dist.values }}
+		}]
+	};
+
+	drawBarChart('alogp_dist',
+		alogpData,
+		'ALogP',
+		null,
+        'bar');
+
+</script>
+{% endblock %}
diff --git a/ippisite/ippidb/templates/about.html b/ippisite/ippidb/templates/about.html
index 799b064161e5aeb9ef8c3255b303d98701dbc2d3..367f3e3a3915965b3d6d5ca4b0bec2c538040192 100644
--- a/ippisite/ippidb/templates/about.html
+++ b/ippisite/ippidb/templates/about.html
@@ -4,42 +4,31 @@
 {% block title %}inhibitors of Protein-Protein Interaction Database{% endblock %}
 
 {% block content %}
-{% block secondarynav %}
 <div id="mainnav">
     <nav class="secondary-nav">
         <div class="inner-wrap">
             <ul>
             	<li>
-                    <a href="/about/general">General informations</a>
+                    <a href="/about-general">General information</a>
                 </li>
                 <li>
-                    <a href="/about/pharmacology">Pharmacology</a>
+                    <a href="/about-pharmacology">Pharmacology</a>
                 </li>
                 <li>
-                    <a href="/about/physicochemistry">Physicochemistry</a>
-                </li>
-                <li>
-                    <a href="/about/drug-candidate">Drug candidate</a>
+                    <a href="/about-physicochemistry">Physicochemistry</a>
                 </li>
             </ul>
         </div>
     </nav>
 </div>
-{% endblock %}
 
 <div class="inner-wrap">
-    <nav class="breadcrumb breadNav" role="navigation">
-        <div class="breadNav-label">You are here</div>
-        <div aria-labelledby="breadcrumb-label">
-        	{% block breadcrumb %} {{block.super}}About{% endblock %} 
-        </div>
-    </nav>
 	<div id="main-wrapper" class="page">
 		<div id="main">
 			<div id="content" class="main-content">
 				<div class="section">
 					<main role="main">
-						<h1 class="page-title"> ABOUT </h1>
+						<h1 class="page-title"> {% block pagetitle %}ABOUT{% endblock%} </h1>
 						<div class="tabs"></div>
 						<div class="main__inner">
 							<div class="region region-content">
@@ -50,7 +39,8 @@
 										<div class="block block-system block-system-main">
 											<div class="content">
 												<div class="view-content">
-																											
+{% block view_content %}
+{% endblock %}																											
 												</div>
 											</div>
 										</div>
diff --git a/ippisite/ippidb/templates/base.html b/ippisite/ippidb/templates/base.html
index 18a1e3d53942fb9d312c48def1d1134858746134..13b7b497202ba061d73e2a5685f79073a12630a5 100644
--- a/ippisite/ippidb/templates/base.html
+++ b/ippisite/ippidb/templates/base.html
@@ -51,16 +51,19 @@
                 window.location = modifiedUrl;
                 $('#loadingModal').modal();
             };
+
             var changeSelection = function(paramName){ 
                 var selectedFields = $('input[name='+ paramName +']:checked').map(function(_, el) { return $(el).val(); }).get(); 
                 modifyUrl(paramName, selectedFields); 
             }
+
             var removeFromSelection = function(paramName, value){ 
                 var url = new URL(location.href);
                 var selectedValues = url.searchParams.getAll(paramName);
                 selectedValues.splice(selectedValues.indexOf(value), 1);
                 modifyUrl(paramName, selectedValues); 
             }
+
             var multiselectTypeAhead = function(idSearch, selection, onSelect){
                 var bh = new Bloodhound({
                   datumTokenizer: Bloodhound.tokenizers.obj.whitespace('name'),
@@ -130,7 +133,7 @@
                                             maintainAspectRatio: false
                 }});
             };
-            var drawCompoundsBiplotChart = function(canvasId, compoundId, compoundFamily, plotData, tabHash){
+            var prepareCompoundFamilyBiplotData = function(compoundId, compoundFamily, plotData){
                 var currentCompoundData = [];
                 var currentFamilyData = [];
                 var otherFamiliesData = [];
@@ -162,6 +165,55 @@
                       data: currentCompoundData
                     }
                 ]};
+                return scatterData;
+            }
+
+            var getPpiFamilyColor = function(ppiName){
+                return {
+                    'BCL2-Like / BAX': '#0E5C97',
+                    'Beta-catenin / TCF-4': '#FAB362',
+                    'Bromodomain / Histone': '#C9862D',
+                    'CD4 / gp120': '#FE8E85',
+                    'CD80 / CD28': '#DB0016',
+                    'E2 / E1': '#C4ADD1',
+                    'FAK / VEGFR3': '#6700FF',
+                    'IL2 / IL2R': '#FE6C00',
+                    'LEDGF / IN': '#971D19',
+                    'LFA / ICAM': '#9DD87E',
+                    'MDM2-Like / P53': '#96C5DC',
+                    'MENIN / MLL': '#EDBBFF',
+                    'Myc / Max': '#C04DC4',
+                    'NRP / VEGF': '#A8184B',
+                    'UPAR / UPA': '#CBDCFF',
+                    'VEGF / VEGFR': '#FED215',
+                    'WDR5/MLL': '#F5F6F7',
+                    'XIAP / Smac': '#128C6D',
+                    'ZipA / ftsZ': '#FEFE01',
+                }[ppiName];
+            }
+
+            var preparePerFamilyBiplotData = function(plotData){
+                var property = 'family_name';
+                var datasets = plotData.reduce(function (acc, obj) {
+                    var family = obj[property];
+                    if(!acc[family]){
+                        acc[family] = {
+                            label: family,
+                            borderColor: getPpiFamilyColor(family),
+                            backgroundColor: getPpiFamilyColor(family),
+                            data: []
+                        };
+                    }
+                    acc[family].data.push(obj);
+                    return acc;
+                }, {});
+                var scatterData = {
+                    'datasets': Object.values(datasets)
+                };
+                return scatterData;
+            }
+
+            var drawCompoundsBiplotChart = function(canvasId, scatterData, tabHash){
                 var ctx = document.getElementById(canvasId).getContext('2d');
                 var scatterChart = new Chart(ctx, {
                     type: 'scatter',
@@ -231,6 +283,7 @@
                     window.location = '/compounds/' + id + '#' + tabHash;
                 };
             }; 
+
             var setUpSliderForModal = function(paramName){
                 $('#'+paramName).slider();
                 $('#'+paramName).on('slide', function(slideEvt) {
@@ -238,6 +291,7 @@
                     $('#'+paramName+'_textvalue_max').text(slideEvt.value[1]);
                 });
             }
+
             var toggleCheckBox = function(id){
                 var cb = $('#'+id);
                 if(cb.prop('checked')==true){
@@ -246,6 +300,82 @@
                     modifyUrl(id,null);
                 }
             }
+
+            var drawBarChart = function(elementId, data, caption, queryFilter, orientation){
+                var ctx = document.getElementById(elementId).getContext('2d');
+                if(orientation==null){
+                    orientation = 'horizontalBar'
+                }
+                var myHorizontalBar = new Chart(ctx, {
+                    type: orientation,
+                    data: data,
+                    options: {
+                        elements: {
+                            rectangle: {
+                                borderWidth: 20,
+                            }
+                        },
+                        responsive: true,
+                        legend: {
+                            position: 'bottom',
+                        },
+                        title: {
+                            display: true,
+                            text: caption
+                        }
+                    }
+                });
+                if(queryFilter!=null){
+                    document.getElementById(elementId).onclick = function(evt){
+                        var activePoints = myHorizontalBar.getElementAtEvent(evt);
+                        var datasetIndex = activePoints[0]._datasetIndex;
+                        var selectedIndex = activePoints[0]._index;
+                        var id = myHorizontalBar.data.labels[datasetIndex];
+                        window.location = '/compounds/?'+ queryFilter + '=' + id;
+                    };
+                }
+            }
+
+            var drawHorizontalStackedBarChart = function(elementId, data, caption, queryFilter){
+                var ctx = document.getElementById(elementId).getContext('2d');
+                var myHorizontalBar = new Chart(ctx, {
+                    type: 'horizontalBar',
+                    data: data,
+                    options: {
+                        elements: {
+                            rectangle: {
+                                borderWidth: 20,
+                            }
+                        },
+                        responsive: true,
+                        legend: {
+                            position: 'bottom',
+                        },
+                        title: {
+                            display: true,
+                            text: caption
+                        },
+                        scales: {
+                            xAxes: [{
+                                stacked: true
+                            }],
+                            yAxes: [{
+                                stacked: true
+                            }]
+                        }
+                    }
+                });
+                if(queryFilter!=null){
+                    document.getElementById(elementId).onclick = function(evt){
+                        var activePoints = myHorizontalBar.getElementAtEvent(evt);
+                        var datasetIndex = activePoints[0]._datasetIndex;
+                        var selectedIndex = activePoints[0]._index;
+                        var id = myHorizontalBar.data.labels[datasetIndex];
+                        window.location = '/compounds/?'+ queryFilter + '=' + id;
+                    };
+                }
+            }
+
         </script>
     </head>
 
@@ -277,7 +407,7 @@
                             <a href="/">Home</a>
                         </li>
                         <li>
-                            <a href="/about">About</a>
+                            <a href="/about-general">About</a>
                         </li>
                         <li>
                             <a href="/compounds">Query compounds</a>
@@ -323,7 +453,7 @@
                         <nav>
                             <ul>
                                 <li>
-                                    <a href="/about">About Us</a>
+                                    <a href="/about-general">About Us</a>
                                 </li>
                                 <li>
                                     <a href="/query">Query</a>
diff --git a/ippisite/ippidb/templates/compound_card.html b/ippisite/ippidb/templates/compound_card.html
index ba50ab9442120e6841f61efebb475ec905c5076b..8bf98f4eff53cf2d8b98c7c21fed138d47ce94d5 100644
--- a/ippisite/ippidb/templates/compound_card.html
+++ b/ippisite/ippidb/templates/compound_card.html
@@ -125,7 +125,7 @@
 
               <canvas id="pca_biplot" style="width:600px; height:600px;"></canvas>
               <script>
-                drawCompoundsBiplotChart('pca_biplot', {{ compound.id }}, '{{ compound.best_activity_ppi_family_name|default_if_none:"No target family identified" }}', {{ pca_biplot_data | safe }}, 'physicochemistry');
+                drawCompoundsBiplotChart('pca_biplot', prepareCompoundFamilyBiplotData({{ compound.id }}, '{{ compound.best_activity_ppi_family_name|default_if_none:"No target family identified" }}', {{ pca_biplot_data | safe }}), 'physicochemistry');
               </script>
               </div>
             </div>
@@ -143,7 +143,7 @@
               <div class="card-body">
               <canvas id="le_lle_biplot"></canvas>
               <script>
-                drawCompoundsBiplotChart('le_lle_biplot', {{ compound.id }}, '{{ compound.best_activity_ppi_family_name|default_if_none:"No target family identified" }}', {{ le_lle_biplot_data | safe }}, 'pharmacology');
+                drawCompoundsBiplotChart('le_lle_biplot', prepareCompoundFamilyBiplotData({{ compound.id }}, '{{ compound.best_activity_ppi_family_name|default_if_none:"No target family identified" }}', {{ le_lle_biplot_data | safe }}), 'pharmacology');
               </script>
             </div>
             </div>
diff --git a/ippisite/ippidb/templates/general.html b/ippisite/ippidb/templates/general.html
deleted file mode 100644
index 7c1f459a6b09ff44203867969380ca345b199074..0000000000000000000000000000000000000000
--- a/ippisite/ippidb/templates/general.html
+++ /dev/null
@@ -1,64 +0,0 @@
-{% extends "about.html" %}
-
-    
-{% block title %}inhibitors of Protein-Protein Interaction Database{% endblock %}
-
-{% block content %}
-<div id="mainnav">
-    <nav class="secondary-nav">
-        <div class="inner-wrap">
-            <ul>
-            	<li>
-                    <a href="/about/general">General informations</a>
-                </li>
-                <li>
-                    <a href="/about/pharmacology">Pharmacology</a>
-                </li>
-                <li>
-                    <a href="/about/physicochemistry">Physicochemistry</a>
-                </li>
-                <li>
-                    <a href="/about/drug-candidate">Drug Candidate</a>
-                </li>
-            </ul>
-        </div>
-    </nav>
-</div>
-<div class="inner-wrap">
-        <nav class="breadcrumb breadNav" role="navigation">
-        <div class="breadNav-label">You are here</div>
-        <div aria-labelledby="breadcrumb-label">
-          {% block breadcrumb %} <a href="/about" class="breadNav-link">{{block.super}}</a> > General informations {% endblock %} 
-        </div>
-    </nav>
-	<div id="main-wrapper" class="page">
-		<div id="main">
-			<div id="content" class="main-content">
-				<div class="section">
-					<main role="main">
-						<h1 class="page-title"> GENERAL INFORMATIONS </h1>
-						<div class="tabs"></div>
-						<div class="main__inner">
-							<div class="region region-content">
-								<div class="page-intro">
-								</div>
-								<div class="color-wrap">
-									<div class="region region-content">
-										<div class="block block-system block-system-main">
-											<div class="content">
-												<div class="view-content">
-													
-												</div>
-											</div>
-										</div>
-									</div>
-								</div>
-							</div>
-						</div>
-					</main><!-- .site-main -->
-				</div>
-			</div>
-		</div><!-- div main -->
-	</div>
-</div>
-{% endblock %}
diff --git a/ippisite/ippidb/templates/physicochemistry.html b/ippisite/ippidb/templates/physicochemistry.html
deleted file mode 100644
index 0f6a83098645b491b1626b003d81d88e0ea7c9ea..0000000000000000000000000000000000000000
--- a/ippisite/ippidb/templates/physicochemistry.html
+++ /dev/null
@@ -1,64 +0,0 @@
-{% extends "about.html" %}
-
-    
-{% block title %}inhibitors of Protein-Protein Interaction Database{% endblock %}
-
-{% block content %}
-<div id="mainnav">
-    <nav class="secondary-nav">
-        <div class="inner-wrap">
-            <ul>
-            	<li>
-                    <a href="/about/general">General informations</a>
-                </li>
-                <li>
-                    <a href="/about/pharmacology">Pharmacology</a>
-                </li>
-                <li>
-                    <a href="/about/physicochemistry">Physicochemistry</a>
-                </li>
-                <li>
-                    <a href="/about/drug-candidate">Drug candidate</a>
-                </li>
-            </ul>
-        </div>
-    </nav>
-</div>
-<div class="inner-wrap">
-    <nav class="breadcrumb breadNav" role="navigation">
-        <div class="breadNav-label">You are here</div>
-        <div aria-labelledby="breadcrumb-label">
-          {% block breadcrumb %} <a href="/about/" class="breadNav-link">{{block.super}}</a> > Physicochemistry {% endblock %} 
-        </div>
-    </nav>
-	<div id="main-wrapper" class="page">
-		<div id="main">
-			<div id="content" class="main-content">
-				<div class="section">
-					<main role="main">
-						<h1 class="page-title"> PHYSICOCHEMISTRY </h1>
-						<div class="tabs"></div>
-						<div class="main__inner">
-							<div class="region region-content">
-								<div class="page-intro">
-								</div>
-								<div class="color-wrap">
-									<div class="region region-content">
-										<div class="block block-system block-system-main">
-											<div class="content">
-												<div class="view-content">
-																											
-												</div>
-											</div>
-										</div>
-									</div>
-								</div>
-							</div>
-						</div>
-					</main><!-- .site-main -->
-				</div>
-			</div>
-		</div><!-- div main -->
-	</div>
-</div>
-{% endblock %}
diff --git a/ippisite/ippidb/urls.py b/ippisite/ippidb/urls.py
index d112f740a8c1a73da522779d333c666380eaa6d4..bb3f766bb593b5c7dff6b47bc75648c132f06417 100644
--- a/ippisite/ippidb/urls.py
+++ b/ippisite/ippidb/urls.py
@@ -13,8 +13,9 @@ ippidb_wizard = IppiWizard.as_view(FORMS,
 
 urlpatterns = [
     url(r'^$', views.index, name='index'),
-    url(r'^about$', views.about, name='about'),
-    url(r'^about/general/$', views.general, name='general'),
+    url(r'^about-general/$', views.about_general, name='general'),
+    url(r'^about-pharmacology/$', views.about_pharmacology, name='pharmacology'),
+    url(r'^about-physicochemistry/$', views.about_physicochemistry, name='physicochemistry'),
     url(r'^compounds/$', views.CompoundListView.as_view(), name='compound_list'),
     url(r'^compounds/IPPIDB-(?P<compound_id>\w+)$', views.CompoundCardBDCHEMRedirectView.as_view(), name='redirect_compound_card'),
     url(r'^compounds/(?P<pk>\w+)$', views.CompoundDetailView.as_view(), name='compound_card'),
diff --git a/ippisite/ippidb/views/__init__.py b/ippisite/ippidb/views/__init__.py
index 377175cfd797a046f62fd0c6061dde5632c5b004..1eb3e43b4bd8c8c13ab43c0d52c48b1820f5a74a 100644
--- a/ippisite/ippidb/views/__init__.py
+++ b/ippisite/ippidb/views/__init__.py
@@ -18,11 +18,6 @@ from django.conf import settings
 def index(request):
     return render(request, 'index.html')
 
-
-def about(request):
-    return render(request, 'about.html')
-
-
 def general(request):
     return render(request, 'general.html')
 
diff --git a/ippisite/ippidb/views/compound_query.py b/ippisite/ippidb/views/compound_query.py
index 532f9f5a4d630b52f2f94c918a7a4abe82116005..f35de390859c77b7e0a596b26aed3612cee79e01 100644
--- a/ippisite/ippidb/views/compound_query.py
+++ b/ippisite/ippidb/views/compound_query.py
@@ -5,7 +5,8 @@ iPPI-DB compound query view and related classes
 import json
 from collections import OrderedDict
 
-from django.db.models import Max, Min, F, Q
+from django.db.models import Max, Min, F, Q, Count, FloatField
+from django.db.models.functions import Cast, Floor
 from django.shortcuts import render
 from django.urls import reverse
 from django.http import Http404, JsonResponse
@@ -14,7 +15,7 @@ from django.views.generic.detail import DetailView
 from django.views.generic.base import RedirectView
 
 from ippidb.utils import mol2smi, smi2mol
-from ippidb.models import Compound, Ppi, ProteinDomainBoundComplex, ProteinDomainPartnerComplex, Disease, Domain, Taxonomy, LeLleBiplotData, PcaBiplotData, PpiFamily, MolecularFunction, TestActivityDescription, create_tanimoto
+from ippidb.models import Compound, Ppi, ProteinDomainBoundComplex, ProteinDomainPartnerComplex, Disease, Domain, Taxonomy, LeLleBiplotData, PcaBiplotData, PpiFamily, MolecularFunction, TestActivityDescription, create_tanimoto, CompoundActivityResult, Bibliography, Protein
 
 DEACTIVATION_MAPPING = {
     'lipinsky': set(['molecular_weight', 'nb_acceptor_h', 'nb_donor_h', 'a_log_p']),
@@ -551,3 +552,79 @@ def convert_smi2mol(request):
     mol_string = smi2mol(smi_string)
     resp = {'mol': mol_string}
     return JsonResponse(resp)
+
+def about_general(request):
+    compounds_count = Compound.objects.count()
+    car_count = CompoundActivityResult.objects.count()
+    bioch_car_count = CompoundActivityResult.objects.filter(test_activity_description__test_type='BIOCH').count()
+    cell_car_count = CompoundActivityResult.objects.filter(test_activity_description__test_type='CELL').count()
+    proteins_count = Protein.objects.count()
+    families_count = PpiFamily.objects.count()
+    ppis_count = Ppi.objects.count()
+    biblio_count = Bibliography.objects.count()
+    context = {
+       'compounds_count': compounds_count,
+       'car_count': car_count,
+       'bioch_car_count': bioch_car_count,
+       'cell_car_count': cell_car_count,
+       'proteins_count': proteins_count,
+       'families_count': families_count,
+       'ppis_count': ppis_count,
+       'biblio_count': biblio_count,
+    }
+    return render(request, 'about-general.html', context=context)
+
+def convert_to_bar_chart_data(data):
+    return {
+        'labels': [item['label'] for item in data],
+        'values': [item['value'] for item in data]
+    }
+
+def about_pharmacology(request):
+    biochemical_tests_count_by_name_qs = CompoundActivityResult.objects.filter(test_activity_description__test_type='BIOCH').values(label=F('test_activity_description__test_name')).order_by('label').annotate(value=Count('label')).order_by('-value')
+    biochemical_tests_count_by_name = convert_to_bar_chart_data(biochemical_tests_count_by_name_qs)
+    cellular_tests_count_by_name_qs = CompoundActivityResult.objects.filter(test_activity_description__test_type='CELL').values(label=F('test_activity_description__test_name')).order_by('label').annotate(value=Count('label')).order_by('-value')
+    cellular_tests_count_by_name = convert_to_bar_chart_data(cellular_tests_count_by_name_qs)
+    compounds_per_ppi_family_raw = PpiFamily.objects.annotate(value=Count('ppi__compoundaction__compound', distinct=True)).values(value=F('value'),label=F('name')).order_by('-value').all()
+    compounds_per_ppi_family = convert_to_bar_chart_data(compounds_per_ppi_family_raw)
+    binding_data_per_ppi_family_raw = PpiFamily.objects.annotate(value=Count('ppi__compoundaction')).values(value=F('value'),label=F('name')).order_by('-value')
+    binding_data_per_ppi_family = convert_to_bar_chart_data(binding_data_per_ppi_family_raw)
+    context = {
+        'biochemical_tests_count_by_name': biochemical_tests_count_by_name,
+        'cellular_tests_count_by_name': cellular_tests_count_by_name,
+        'bioch_tests_pxc50_gte8': CompoundActivityResult.objects.filter(test_activity_description__test_type='BIOCH').filter(activity__gte=8).count(),
+        'bioch_tests_pxc50_gte7_lt8': CompoundActivityResult.objects.filter(test_activity_description__test_type='BIOCH').filter(activity__gte=7).filter(activity__lt=8).count(),
+        'bioch_tests_pxc50_gte6_lt7': CompoundActivityResult.objects.filter(test_activity_description__test_type='BIOCH').filter(activity__gte=6).filter(activity__lt=7).count(),
+        'bioch_tests_pxc50_lt6': CompoundActivityResult.objects.filter(test_activity_description__test_type='BIOCH').filter(activity__lt=6).count(),
+        'cell_tests_pxc50_gte8': CompoundActivityResult.objects.filter(test_activity_description__test_type='CELL').filter(activity__gte=8).count(),
+        'cell_tests_pxc50_gte7_lt8': CompoundActivityResult.objects.filter(test_activity_description__test_type='CELL').filter(activity__gte=7).filter(activity__lt=8).count(),
+        'cell_tests_pxc50_gte6_lt7': CompoundActivityResult.objects.filter(test_activity_description__test_type='CELL').filter(activity__gte=6).filter(activity__lt=7).count(),
+        'cell_tests_pxc50_lt6': CompoundActivityResult.objects.filter(test_activity_description__test_type='CELL').filter(activity__lt=6).count(),
+        'compounds_per_ppi_family': compounds_per_ppi_family,
+        'binding_data_per_ppi_family': binding_data_per_ppi_family,
+        'le_lle_biplot_data': LeLleBiplotData.objects.get().le_lle_biplot_data,
+    }
+    return render(request, 'about-pharmacology.html', context=context)
+
+def about_physicochemistry(request):
+    fsp3_counts = Compound.objects.annotate(label=Cast(Floor(F('fsp3')*10),FloatField())/10).values('label').order_by('label').annotate(value=Count('label')).values('value','label').exclude(value=0)
+    mw_counts = Compound.objects.annotate(label=Cast(Floor(F('molecular_weight')/100),FloatField())*100).values('label').order_by('label').annotate(value=Count('label')).values('value','label').exclude(value=0)
+    chiral_counts = Compound.objects.annotate(label=F('nb_chiral_centers')).values('label').order_by('label').annotate(value=Count('label')).values('value','label').exclude(value=0)
+    arom_counts = Compound.objects.annotate(label=F('nb_aromatic_sssr')).values('label').order_by('label').annotate(value=Count('label')).values('value','label').exclude(value=0)
+    rotbonds_counts = Compound.objects.annotate(label=F('nb_rotatable_bonds')).values('label').order_by('label').annotate(value=Count('label')).values('value','label').exclude(value=0)
+    haccept_counts = Compound.objects.annotate(label=F('nb_acceptor_h')).values('label').order_by('label').annotate(value=Count('label')).values('value','label').exclude(value=0)
+    hdon_counts = Compound.objects.annotate(label=F('nb_donor_h')).values('label').order_by('label').annotate(value=Count('label')).values('value','label').exclude(value=0)
+    tpsa_counts = Compound.objects.annotate(label=Cast(Floor(F('tpsa')/10),FloatField())*10).values('label').order_by('label').annotate(value=Count('label')).values('value','label').exclude(value=0)
+    alogp_counts = Compound.objects.annotate(label=Cast(Floor(F('a_log_p')),FloatField())).values('label').order_by('label').annotate(value=Count('label')).values('value','label').exclude(value=0)
+    context = {
+        'fsp3_dist': convert_to_bar_chart_data(fsp3_counts),
+        'mw_dist': convert_to_bar_chart_data(mw_counts),
+        'chiral_dist': convert_to_bar_chart_data(chiral_counts),
+        'arom_dist': convert_to_bar_chart_data(arom_counts),
+        'rotbonds_dist': convert_to_bar_chart_data(rotbonds_counts),
+        'haccept_dist': convert_to_bar_chart_data(haccept_counts),
+        'hdon_dist': convert_to_bar_chart_data(hdon_counts),
+        'tpsa_dist': convert_to_bar_chart_data(tpsa_counts),
+        'alogp_dist': convert_to_bar_chart_data(alogp_counts),
+    }
+    return render(request, 'about-physicochemistry.html', context=context)