The book is short but full of informative information. It's written clearly, and the author injects humor here and there, making it more than just a boring textbook. Barefooting is supposed to be fun anyways, right?
After introducing himself, Robillard discusses the very basics of running barefoot, including taking it slow, listening to your feet, and just having fun doing it. Coming from a Pose Method background, I do differ with the explanation of how to run, but he still does a good job of explaining the most important concepts, which are that of the leaning from the ankles and pulling the foot off the ground. Besides that technical area, I thought he does a great job of explaining different drills you can do and reminding you to relax when you run. While it's important to keep your core active and tight, people get nagging injuries due to shrugging their shoulders, plantar or dorsi-flexing their ankles, or just remaining too rigid in the knees throughout the whole stride.
The book's "Concepts" sections are well thought out, the drill "Activities" are all extremely useful, and the "Issues" sections address well-known problems that newbie, and experienced, barefoot runners face from time to time. Robillard provides sections for all skills levels, from beginners looking to run a few miles to racers eager to set new PR's, and to people who'd like to get into barefoot running on trails where there are more hazards than when running on pavement.
The book definitely accomplishes its goal of introducing barefoot running to the uninitiated, and it's length and humor keep it accessible to adults and children alike. I highly recommend it if you are interested in learning barefoot running, as it inspires you to just get out there and go!