This is one of those few perspective-changing books that you come across. I have been interested in weight-training, cardio activities and sports nutrition for a number of years, in the hope that I will improve my fitness levels and get leaner/more muscular. Up until reading this book I depended solely on magazines such as Muscle and Fitness for information and guidelines, but finding progress to be quite slow. This book changed everything. From the outset it is easily accessible but very informative, providing effective and revealing advice. As a result I am eating more healthily and effectively as regards to my training needs, and have found my progress to have quickened considerably. Extremely useful is the section on how much of carbs, protein and fat you need to eat for different goals (weight gain, fat loss, or sports-specific needs). It is ESSENTIAL reading to anyone who cares about their health, but especially for those who take their training and/or body composition seriously. Trust me, you'll be glad you bought this book!