In this installment of Photoshop CS5 Top 5, Deke McClelland explores a feature he calls fun to use, funny to watch, and extremely powerful. Take a fifteen-minute tour of the Puppet Warp feature, then head over to check out all of our Adobe CS5 training to explore new courses and tutorials covering Photoshop, Illustrator, Dreamweaver, InDesign, Flash, Premiere, and more.

Refining selections and creating masks are unglamorous but utterly essential Photoshop techniques—you've got to master both in order to perform tricky compositing tasks, such as extracting a person from an image and then adding a different background.

Much can be said of masking: Masking is the art of using the image to select itself. Masking lets you apply the entire weight of Photoshop to the task of editing a selection. And masking, thy name is alpha channel.

Smart objects aren't all that smart. And they aren't objects. What they are is envelopes. The kind that hold things. And keep them safe. So that everything you do protects the image from harm. This is Photoshop at its best.

You may know that you can add to a selection by pressing the Shift key. But you can likewise press keys to subtract and find an intersection. Better yet, these tricks apply to layers, channels, and paths. They're a power users dream.