The Photoshop software allows you to do amazing things you never even thought possible, here you can learn special effects, how to work with pictures and more.

Picture Description Language
learn use photoshop Here you'll find guides for many abilities of Photoshop like how to change the hair's color, how to make a picture look like a paint, how to fix pictures and more.
learn use photoshop A grate site, teaches all king of graphic software (mainly photoshop). good and detailed guides, for begginer and advanced as well.
learn use photoshop This site has nice guides teaches all kind of Photoshop tricks