Although I haven't read the whole textbook (about half-read) due to priorities in specific subjects, I will say that this is the best of the bunch in exercise physiology texts. It's definitely a keeper for a lot of related subjects, though some are still missing more or less in depth (I was surprised, and a bit disappointed, that not much was mentioned about adrenergic receptors, for example). Nonetheless, until now, my favorite of exercise physiology texts, and one I wish would have been the text in use at university classes.