Join Chris Converse for an in-depth discussion in this video Using the exercise files, part of Design the Web: Animated Loading GIFs.
Now, if you're a premium subscriber to the lynda.com online training library, you'll have access to the exercise files. Inside of here, I have three Photoshop files. One called dial.psd, one called lynda.psd, and adamconference.psd. Now, I did get special permission from Russell Brown of Adobe Systems to use the artwork from the Adam Conference. So we can create some fun zombie animations in addition to the branded icon and the dial. Now if you don't have access to the exercise files, you can follow along with any layered Photoshop file.