Repairing an overlap between polygons

Here are the step-by-step directions for repairing the overlaps found in the sample parcels.shp data:

1. Toggle the editing option on for the parcels layer and select the polygon to edit with the Select Feature by Rectangle tool ( ). Each vertex will be displayed as a red graphic X.
2. The Vertex tool () will be used to move the leftmost parcel and eliminate the overlap. It allows individual vertices to be moved.
3. Click on one of the parcel corners, and the vertices will appear as red boxes.
4. Click on the lower-left vertex of the right-hand side parcel to select it. It will turn blue.
5. Drag the selected vertex until it snaps to the boundary of the parcel it is overlapping. A blue line will appear showing the location of the virtual polygon boundary as you edit it, as shown in the following diagram:

This is the vertex of the right-hand overlapping...