diff --git a/src/main/java/hudson/plugins/sloccount/ReportSummary.java b/src/main/java/hudson/plugins/sloccount/ReportSummary.java
index 07e3814..dabed23 100644
--- a/src/main/java/hudson/plugins/sloccount/ReportSummary.java
+++ b/src/main/java/hudson/plugins/sloccount/ReportSummary.java
@@ -17,7 +17,7 @@ private ReportSummary(){
     }
 
     public static String createReportSummary(List<SloccountLanguageStatistics> current,
-    		List<SloccountLanguageStatistics> previous){
+            List<SloccountLanguageStatistics> previous){
         StringBuilder builder = new StringBuilder();
 
         if(current != null){
@@ -55,7 +55,7 @@ public static String createReportSummary(List<SloccountLanguageStatistics> curre
     }
 
     public static String createReportSummaryDetails(List<SloccountLanguageStatistics> current,
-    		List<SloccountLanguageStatistics> previous){
+            List<SloccountLanguageStatistics> previous){
         
         StringBuilder builder = new StringBuilder();
 
@@ -63,7 +63,7 @@ public static String createReportSummaryDetails(List<SloccountLanguageStatistics
             
             for(SloccountLanguageStatistics language : current){
                 
-            	SloccountLanguageStatistics previousLanguage = null;
+                SloccountLanguageStatistics previousLanguage = null;
                 
                 if(previous != null) {
                     previousLanguage = getLanguage(previous, language.getName());
@@ -77,7 +77,7 @@ public static String createReportSummaryDetails(List<SloccountLanguageStatistics
     }
 
     private static void appendLanguageDetails(SloccountLanguageStatistics current,
-    		SloccountLanguageStatistics previous, StringBuilder builder){
+            SloccountLanguageStatistics previous, StringBuilder builder){
 
         String strLines     = Messages.Sloccount_ReportSummary_Lines();
         String strFiles     = Messages.Sloccount_ReportSummary_Files();
@@ -136,7 +136,7 @@ private static int getLineCount(List<SloccountLanguageStatistics> statistics)
             lineCount += it.getLineCount();
         }
 
-        return lineCount;    	
+        return lineCount;
     }
     
     private static int getFileCount(List<SloccountLanguageStatistics> statistics)
@@ -147,7 +147,7 @@ private static int getFileCount(List<SloccountLanguageStatistics> statistics)
             fileCount += it.getFileCount();
         }
 
-        return fileCount; 	
+        return fileCount;
     }
     
     private static int getLanguageCount(List<SloccountLanguageStatistics> statistics)
@@ -155,14 +155,14 @@ private static int getLanguageCount(List<SloccountLanguageStatistics> statistics
         return statistics.size();
     }
     
-    private static SloccountLanguageStatistics getLanguage(List<SloccountLanguageStatistics> statistics, String name)
+    static SloccountLanguageStatistics getLanguage(List<SloccountLanguageStatistics> statistics, String name)
     {
-    	for(SloccountLanguageStatistics it : statistics) {
+        for(SloccountLanguageStatistics it : statistics) {
             if(it.getName().equals(name)) {
-            	return it;
+                return it;
             }
         }
-    	
-    	return new SloccountLanguageStatistics(name, 0, 0);
+        
+        return new SloccountLanguageStatistics(name, 0, 0);
     }
 }
diff --git a/src/main/java/hudson/plugins/sloccount/SloccountChartBuilder.java b/src/main/java/hudson/plugins/sloccount/SloccountChartBuilder.java
index 5d4d196..a5780ff 100644
--- a/src/main/java/hudson/plugins/sloccount/SloccountChartBuilder.java
+++ b/src/main/java/hudson/plugins/sloccount/SloccountChartBuilder.java
@@ -1,14 +1,13 @@
 package hudson.plugins.sloccount;
 
-import hudson.plugins.sloccount.model.Language;
 import hudson.plugins.sloccount.model.SloccountLanguageStatistics;
-import hudson.plugins.sloccount.model.SloccountReport;
 import hudson.util.ChartUtil.NumberOnlyBuildLabel;
 import hudson.util.DataSetBuilder;
 import hudson.util.ShiftedCategoryAxis;
 
 import java.awt.Color;
 import java.io.Serializable;
+import java.util.List;
 
 import org.jfree.chart.ChartFactory;
 import org.jfree.chart.JFreeChart;
@@ -33,7 +32,9 @@ public static JFreeChart buildChart(SloccountBuildAction action){
        
         String strLines = Messages.Sloccount_ReportSummary_Lines();
 
-        JFreeChart chart = ChartFactory.createStackedAreaChart(null, null, strLines, buildDataset(action), PlotOrientation.VERTICAL, true, false, true);
+        JFreeChart chart = ChartFactory.createStackedAreaChart(null, null,
+                strLines, buildDataset(action), PlotOrientation.VERTICAL,
+                true, false, true);
 
         chart.setBackgroundPaint(Color.white);
 
@@ -82,4 +83,75 @@ private static CategoryDataset buildDataset(SloccountBuildAction lastAction){
 
         return builder.build();
     }
+    
+    public static JFreeChart buildChartDelta(SloccountBuildAction action){
+        
+        String strLinesDelta = Messages.Sloccount_ReportSummary_Lines()
+                + " " + Messages.Sloccount_Trend_Delta();
+
+        JFreeChart chart = ChartFactory.createStackedAreaChart(null, null,
+                strLinesDelta, buildDatasetDelta(action), PlotOrientation.VERTICAL,
+                true, false, true);
+
+        chart.setBackgroundPaint(Color.white);
+
+        CategoryPlot plot = chart.getCategoryPlot();
+        plot.setBackgroundPaint(Color.WHITE);
+        plot.setOutlinePaint(null);
+        plot.setForegroundAlpha(0.8f);
+        plot.setRangeGridlinesVisible(true);
+        plot.setRangeGridlinePaint(Color.black);
+
+        CategoryAxis domainAxis = new ShiftedCategoryAxis(null);
+        plot.setDomainAxis(domainAxis);
+        domainAxis.setCategoryLabelPositions(CategoryLabelPositions.UP_90);
+        domainAxis.setLowerMargin(0.0);
+        domainAxis.setUpperMargin(0.0);
+        domainAxis.setCategoryMargin(0.0);
+
+        NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
+        rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
+
+        // crop extra space around the graph
+        plot.setInsets(new RectangleInsets(0, 0, 0, 5.0));
+
+        SloccountAreaRenderer renderer = new SloccountAreaRenderer(action.getUrlName());
+        plot.setRenderer(renderer);
+
+        return chart;
+    }
+
+    private static CategoryDataset buildDatasetDelta(SloccountBuildAction lastAction){
+        DataSetBuilder<String, NumberOnlyBuildLabel> builder = new DataSetBuilder<String, NumberOnlyBuildLabel>();
+
+        SloccountBuildAction action = lastAction;
+        
+        while(action != null){
+            SloccountBuildAction previousAction = action.getPreviousAction();
+            SloccountResult result = action.getResult();
+            List<SloccountLanguageStatistics> previousStatistics = null;
+            
+            if(result != null){
+                NumberOnlyBuildLabel buildLabel = new NumberOnlyBuildLabel(action.getBuild());
+                
+                if(previousAction != null && previousAction.getResult() != null){
+                    previousStatistics = previousAction.getResult().getStatistics();
+                } else {
+                    // This will produce zero delta for the first build
+                    previousStatistics = result.getStatistics();
+                }
+
+                for(SloccountLanguageStatistics current : result.getStatistics()){
+                    SloccountLanguageStatistics previous = ReportSummary.getLanguage(previousStatistics, current.getName());
+                    
+                    builder.add(current.getLineCount() - previous.getLineCount(),
+                            current.getName(), buildLabel);
+                }
+            }
+
+            action = previousAction;
+        };
+
+        return builder.build();
+    }
 }
diff --git a/src/main/java/hudson/plugins/sloccount/SloccountProjectAction.java b/src/main/java/hudson/plugins/sloccount/SloccountProjectAction.java
index 15146e9..13131d5 100644
--- a/src/main/java/hudson/plugins/sloccount/SloccountProjectAction.java
+++ b/src/main/java/hudson/plugins/sloccount/SloccountProjectAction.java
@@ -54,8 +54,8 @@ public void doIndex(final StaplerRequest request, final StaplerResponse response
         if (build != null) {
             response.sendRedirect2(String.format("../%d/%s", build.getNumber(), SloccountBuildAction.URL_NAME));
         }else{
-        	// Click to the link in menu on the job page before the first build
-        	response.sendRedirect2("..");
+            // Click to the link in menu on the job page before the first build
+            response.sendRedirect2("..");
         }
     }
 
@@ -154,4 +154,51 @@ public void doTrend(final StaplerRequest request, final StaplerResponse response
                 CHART_WIDTH,
                 CHART_HEIGHT);
     }
+    
+    /**
+     * Display the trend delta map. Delegates to the the associated
+     * {@link ResultAction}.
+     *
+     * @param request
+     *            Stapler request
+     * @param response
+     *            Stapler response
+     * @throws IOException
+     *             in case of an error
+     */
+    public void doTrendDeltaMap(final StaplerRequest request, final StaplerResponse response) throws IOException {
+        AbstractBuild<?,?> lastBuild = this.getLastFinishedBuild();
+        SloccountBuildAction lastAction = lastBuild.getAction(SloccountBuildAction.class);
+
+        ChartUtil.generateClickableMap(
+                request,
+                response,
+                SloccountChartBuilder.buildChartDelta(lastAction),
+                CHART_WIDTH,
+                CHART_HEIGHT);
+    }
+
+    /**
+     * Display the trend delta graph. Delegates to the the associated
+     * {@link ResultAction}.
+     *
+     * @param request
+     *            Stapler request
+     * @param response
+     *            Stapler response
+     * @throws IOException
+     *             in case of an error in
+     *             {@link ResultAction#doGraph(StaplerRequest, StaplerResponse, int)}
+     */
+    public void doTrendDelta(final StaplerRequest request, final StaplerResponse response) throws IOException {
+        AbstractBuild<?,?> lastBuild = this.getLastFinishedBuild();
+        SloccountBuildAction lastAction = lastBuild.getAction(SloccountBuildAction.class);
+
+        ChartUtil.generateGraph(
+                request,
+                response,
+                SloccountChartBuilder.buildChartDelta(lastAction),
+                CHART_WIDTH,
+                CHART_HEIGHT);
+    }
 }
diff --git a/src/main/resources/hudson/plugins/sloccount/Messages.properties b/src/main/resources/hudson/plugins/sloccount/Messages.properties
index 612bca4..4af06d2 100644
--- a/src/main/resources/hudson/plugins/sloccount/Messages.properties
+++ b/src/main/resources/hudson/plugins/sloccount/Messages.properties
@@ -8,4 +8,6 @@ Sloccount.ReportSummary.Lines=lines of code
 Sloccount.ReportSummary.Files=files
 Sloccount.ReportSummary.and=and
 Sloccount.ReportSummary.in=in
-Sloccount.ReportSummary.Languages=languages
\ No newline at end of file
+Sloccount.ReportSummary.Languages=languages
+
+Sloccount.Trend.Delta=(delta)
diff --git a/src/main/resources/hudson/plugins/sloccount/SloccountProjectAction/floatingBox.jelly b/src/main/resources/hudson/plugins/sloccount/SloccountProjectAction/floatingBox.jelly
index 0442d19..4665260 100644
--- a/src/main/resources/hudson/plugins/sloccount/SloccountProjectAction/floatingBox.jelly
+++ b/src/main/resources/hudson/plugins/sloccount/SloccountProjectAction/floatingBox.jelly
@@ -8,6 +8,9 @@
 		  <div>
 		    <img src="${from.urlName}/trend" lazymap="${from.urlName}/trendMap"/>
 		  </div>
+		  <div>
+		    <img src="${from.urlName}/trendDelta" lazymap="${from.urlName}/trendDeltaMap"/>
+		  </div>
 	   	</div>
 	</j:if>
 </j:jelly>
\ No newline at end of file