books.google.com - This is a book about how we see: the environment around us (its surfaces, their layout, and their colors and textures); where we are in the environment; whether or not we are moving and, if we are, where we are going; what things are good for; how to do things (to thread a needle or drive an automobile);...http://books.google.com/books/about/The_ecological_approach_to_visual_percep.html?id=DrhCCWmJpWUC&utm_source=gb-gplus-shareThe ecological approach to visual perception
