This book might serve the purpose of an athlete, but may not be good for a typical student or non-student.
It has cited too many references, as if it is for a student pursuing a research program. An average undergraduate student has no time to scan through piles of references cited in this book.
It has little by way of visual aids.
Its contents do not present a straightforward methodology for an average person to deduce pros and cons of a food menu.
It has some biased opinions. For example, Figure 1.4 does not list Smoking as a possible cause for Lung Cancer.
It does not give any information about the author, apart from the author's being at the Old Dominion University.
The web link www.mhhe.com/williams stated on the back page of this book is not valid. This becomes a frustrating experience.
The book is in Paperback format, is used mainly by community-college students with limited budgets for books, and is not a monopoly book. Many better and cheaper textbooks on this subject are available from other publishers. Thus, this book's price tag of $95 is super high. Even the 7th edition's price tag of $75 seems to be high.

I highly recommended "Nutrition for Health, Fitness and Sport" to exercise science and nutrition students. Itýs comprehesive yet not too technical.

You may also want to order "Creatine: The Power Supplement" by Williams et al. (Human Kinetics 1999).

PS. You may also want to read my article "Protein metabolism in exercising human with special reference to protein supplementation":

Melvin Williams has written a great book on sports nutrition. He takes a chapter to cover every nutrient including supplementation and athletic performance in regards to that nutrient. He also covers fluid and electrolytes. He also includes weight loss, weight gain chapters that are very useful for any athlete of any level.