Eaweard Muybridges work after his success with Animals in Motion, logically would pursue humans doing tasks that would allow us to view humans in motion.With about 4700 photos in this collection, larger than the animals collection, you will see men, women and children doing just about everything short of coition. All models are nude, running, skipping, jumping, carrying pails of water. This collection by Dover, one of the finest publishers around, is a great reference for all artists, especially animators. As it can show them the muscles and movements and positions of weight, balance, footing, head movements and expressions to gain an edge on their drawings for more accuracy. The Walt Disney Animation Studios reading list highly reccomends this collection for every prospective animator.