Photoshop Keyboard Shortcut Poster
Two formats available. Poster format and a tent card format for those who would like to print out and make a tri-fold tent card. The poster is broken down in a list layout by subject as well as a keyboard layout. As a bonus if you have access to Illustrator, he has left a layer of alternate template graphics in case you are inclined to customize the poster.
Grab the shortcut poster here: PhotoShop Keyboard Shortcuts