Excellent book. Simply laid out, well written & backed up by research. The author doesn't just suggest what to do, but helps you actually put things in place to get them done. There's info on macros, calories, weight loss & muscle gain, common myths, how to calculate RMR, how to track calories & macros, HITT, exercise routines (with reps and sets), goal setting, tips on accountability etc. Very comprehensive for such a quick read!