This book by McArdle et al is essential reading for those studying fairly basic to moderately advanced exercise physiology. For those who want something a little easier to read, I would start with "Exercise Physiology" by Sharon Plowman and Denise Smith 3 EdExercise Physiology for Health, Fitness, and Performance; also available on Amazon. For more advanced post-grad stuff, I would also recommend "ACSM's Advanced Exercise Physiology". In my opinion, McArdle's .. book is an indispensible text for all readers interested in exercise physiology other than for those who only require a really basic, cursory knowledge of the subject. PS I own all 3 of the titles I have mentioned.