A set of video tutorials on Photoshop from Lynda.com. Includes 13 hours of a variety of benefits, ranging from the simplest things to properly complex. By Video Tutorials included a nice index, contents and general hull. It should work as a Mac and a PC.
Original description:
"Enhancing Digital Photography with Photoshop CS with Chris Orwig will greatly increase the digital imaging skills and creativity of professional photographers, imaging professionals and enthusiasts. After first discussing color management skills, the tutorial advances to cover the features of Photoshop that are most essential to photographers such as the camera raw plug-in, the file browser, dust and scratches, the lens blur, shadows and highlights, advanced saturation, retouching, burning and dodging, curves for color and tone, black and white conversion, cross processing, creating panoramas , advanced sharpening, and much more. Exercise files (JPGs, PSDs and raw files) accompany the training, allowing you to follow along and learn at your own pace. "