As someone who's several years into eating "real food" I didn't pick up a lot of new information. But for someone new to this type of eating, it's informative and motivational without being preachy. Recipes and cooking tips are provided, but would be nicely supplemented using websites and other books. The Physicians Committee for Responsible Medicine hosts an online version of the 21-Day Kickstart several times per year, and I imagine the book is similar to what you'd learn by following the online version.