Along with the launch of Aperture 3, Apple released a series of tutorial videos showing how to use several of the new features in the professional image management and editing application.
Apple's Aperture 3 video tutorials
The tutorial videos are grouped into several categories including Getting Started, Organizing, Managing Libraries, Compare and Select, Editing Images, and Showcasing Work. Each tutorial video is only a few minutes long.
Apple's Aperture 3 tutorial videos are available at the company's Aperture Web site in QuickTime format.