Recommended Reading SimpleSLR Hands-On Photography Training is the electronic version of my SimpleSLR PhotoClass. If you have this e-book, it’s almost like being there at my class, because the exercises that I take my class participants through have been distilled into this e-book. Unlike a regular book, it’s designed to quickly get you up to speed with basic photography principles, and provides a platform for you to experiment and refine your techniques. Learn to take better pictures in 4 hours with this e-book!