Seeley's Principles of Anatomy and Physiology, 2 edition (repost)

SmartBook is the first and only adaptive reading experience. Fueled by LearnSmart – the most widely used and intelligent adaptive learning technology – SmartBook identifies what you know and don't know, and highlights what you need to learn. It even figures out what material you are most likely to forget. SmartBook helps you study smarter, not harder, and get the grades you want.