Chad Perkins shows how to use the Bezier pen tool in Photoshop, Flash, and After Effects. Perkins attempts to shed light on how the tool can be used and dispels certain misconceptions about the pen tool. The pen tool allows users to create various types of paths, either open or closed, at the most basic level of use. At the more complex level, the pen tool can be used to create professional looking curves. For better understanding of what the pen tool can do for graphics and other designs, follow the steps in this tutorial.