diff --git a/src/edu/cornell/mannlib/vitro/webapp/visualization/coauthorship/EdgeComparator.java b/src/edu/cornell/mannlib/vitro/webapp/visualization/coauthorship/EdgeComparator.java
index 524d88d6..9c5baf44 100644
--- a/src/edu/cornell/mannlib/vitro/webapp/visualization/coauthorship/EdgeComparator.java
+++ b/src/edu/cornell/mannlib/vitro/webapp/visualization/coauthorship/EdgeComparator.java
@@ -11,7 +11,7 @@ public class EdgeComparator implements Comparator<Edge> {
 
 	@Override
 	public int compare(Edge arg0, Edge arg1) {
-		return arg1.getEdgeID() - arg0.getEdgeID();
+		return arg0.getEdgeID() - arg1.getEdgeID();
 	}
 
 }
diff --git a/src/edu/cornell/mannlib/vitro/webapp/visualization/coauthorship/NodeComparator.java b/src/edu/cornell/mannlib/vitro/webapp/visualization/coauthorship/NodeComparator.java
index b74139d1..50999502 100644
--- a/src/edu/cornell/mannlib/vitro/webapp/visualization/coauthorship/NodeComparator.java
+++ b/src/edu/cornell/mannlib/vitro/webapp/visualization/coauthorship/NodeComparator.java
@@ -11,7 +11,7 @@ public class NodeComparator implements Comparator<Node> {
 
 	@Override
 	public int compare(Node arg0, Node arg1) {
-		return arg1.getNodeID() - arg0.getNodeID();
+		return arg0.getNodeID() - arg1.getNodeID();
 	}
 
 }
diff --git a/src/edu/cornell/mannlib/vitro/webapp/visualization/personlevel/VisualizationRequestHandler.java b/src/edu/cornell/mannlib/vitro/webapp/visualization/personlevel/VisualizationRequestHandler.java
index f5381408..ea60d2d0 100644
--- a/src/edu/cornell/mannlib/vitro/webapp/visualization/personlevel/VisualizationRequestHandler.java
+++ b/src/edu/cornell/mannlib/vitro/webapp/visualization/personlevel/VisualizationRequestHandler.java
@@ -381,12 +381,12 @@ public class VisualizationRequestHandler {
         request.setAttribute("egoURIParam", egoURIParam);
         
         String title = "";
-        if (coAuthorshipVO.getNodes() != null) {
+        if (coAuthorshipVO.getNodes() != null && coAuthorshipVO.getNodes().size() > 0) {
         	request.setAttribute("numOfAuthors", coAuthorshipVO.getNodes().size());
         	title = "for " + coAuthorshipVO.getEgoNode().getNodeName();
 		}
 		
-		if (coAuthorshipVO.getEdges() != null) {
+		if (coAuthorshipVO.getEdges() != null && coAuthorshipVO.getEdges().size() > 0) {
 			request.setAttribute("numOfCoAuthorShips", coAuthorshipVO.getEdges().size());
 		}