This tutorial covers the new bounding box feature in After Effects CS6. With this feature, you can easily visualize the edges of your layers, making layers more discoverable and easy to work with. The video goes into detail about the simple and more advanced benefits of these display elements. One of the greatest new features is the ability to snap anchor points to corners, edges, and the center of layers.
Credits: Thanks to John Gumaer for doing the intro sound design.