A strange method in this book. We start by asking you questions on the muscles ... then we give you the answers !! ... So that without prior knowledge, galley and we can not answer! It will have been better to introduce the muscles, their functions and their locations, then we do a little test to see if all is well assimilated and to make up for deficiencies. This book is for people who already have knowledge of muscle anatomy ... but in this case, I think it does not bring much ..... Other books by this author are more complete, more practical and we learn much more ....