diff --git a/jsprit-analysis/src/main/java/jsprit/analysis/toolbox/GraphStreamViewer.java b/jsprit-analysis/src/main/java/jsprit/analysis/toolbox/GraphStreamViewer.java
index de39a85f..cbfe270a 100644
--- a/jsprit-analysis/src/main/java/jsprit/analysis/toolbox/GraphStreamViewer.java
+++ b/jsprit-analysis/src/main/java/jsprit/analysis/toolbox/GraphStreamViewer.java
@@ -29,6 +29,9 @@ public class GraphStreamViewer {
 					" 	stroke-mode: plain;" + 
 					"	stroke-color: #999;" +
 					"	stroke-width: 1.0;" +
+					"	text-font: couriernew;" +
+					" 	text-offset: 2,-5;" +
+					"	text-size: 8;" +
 					"}" +
 					"node.pickup {" +
 					" 	fill-color: #6CC644;" +
diff --git a/jsprit-examples/src/main/java/jsprit/examples/SimpleExample.java b/jsprit-examples/src/main/java/jsprit/examples/SimpleExample.java
index 7eda8cde..f9b4e323 100644
--- a/jsprit-examples/src/main/java/jsprit/examples/SimpleExample.java
+++ b/jsprit-examples/src/main/java/jsprit/examples/SimpleExample.java
@@ -22,6 +22,7 @@ import java.util.Collection;
 import jsprit.analysis.toolbox.GraphStreamViewer;
 import jsprit.analysis.toolbox.SolutionPlotter;
 import jsprit.analysis.toolbox.SolutionPrinter;
+import jsprit.analysis.toolbox.GraphStreamViewer.Label;
 import jsprit.analysis.toolbox.SolutionPrinter.Print;
 import jsprit.core.algorithm.VehicleRoutingAlgorithm;
 import jsprit.core.algorithm.box.SchrimpfFactory;
@@ -106,7 +107,7 @@ public class SimpleExample {
 		 */
 //		SolutionPlotter.plotSolutionAsPNG(problem, bestSolution, "output/solution.png", "solution");
 		
-		new GraphStreamViewer(problem, bestSolution).setRenderDelay(100).display();
+		new GraphStreamViewer(problem, bestSolution).labelWith(Label.ID).setRenderDelay(100).display();
 	}
 
 }
diff --git a/jsprit-examples/src/main/java/jsprit/examples/SolomonExample.java b/jsprit-examples/src/main/java/jsprit/examples/SolomonExample.java
index 82f81d03..1927c463 100644
--- a/jsprit-examples/src/main/java/jsprit/examples/SolomonExample.java
+++ b/jsprit-examples/src/main/java/jsprit/examples/SolomonExample.java
@@ -23,6 +23,7 @@ import jsprit.analysis.toolbox.GraphStreamViewer;
 import jsprit.analysis.toolbox.Plotter;
 import jsprit.analysis.toolbox.SolutionPlotter;
 import jsprit.analysis.toolbox.SolutionPrinter;
+import jsprit.analysis.toolbox.GraphStreamViewer.Label;
 import jsprit.analysis.toolbox.SolutionPrinter.Print;
 import jsprit.core.algorithm.VehicleRoutingAlgorithm;
 import jsprit.core.algorithm.io.VehicleRoutingAlgorithms;
@@ -101,7 +102,7 @@ public class SolomonExample {
 		
 //		GraphStream.display(vrp,100);
 		
-		new GraphStreamViewer(vrp,solution).setRenderDelay(100).display();
+		new GraphStreamViewer(vrp,solution).labelWith(Label.ID).setRenderDelay(100).display();
 		
 	}