There is very little educational value in this book, because there’s zero instruction or step-by-step explanation. Rather it’s a collection of sketchbook exercises the author has done to practice his art. His observations are very brief and sketchy which makes any muscle study impossible. The guy on the cover is probably the most useful drawing in the whole book. On the other hand, I am now inspired to study interesting motion footage frame by frame to build my own library of references. Flip through this one as a curiosity piece to get a glimpse into another artist’s thought process, but don’t expect to learn anything.