There isn't a great deal to say about this book. It just provides an animator with a series of keyframes that are useful in describing the gaits of the various animals illustated; horses, elephants, baboons, cats, birds. It's a scientific book, and I think the photographs of horses may have been taken to settle a bet as to whether, at full gallop, all the hooves leave the ground simultaneously. But it's of significant value to an artist, especially an artist who hasn't bothered to study anatomy properly and makes everything look like it's been made out of plasticine. A short cut to da Vinci. Sort of. Of course it isn't only for animators, but if you happen to be one this is a very useful book. I just wish it was more comprehensive. So do the hooves leave the ground or not? Buy it and see.