While I do appreciate the message of their book (that a plant-based
diet is good for your body) I found the overall tone of the book to
be implicitly negative and condescending. I also found they
recommended a lot of processed vegan foods, I don't particularly
see that as being the healthiest option, either.
If you are looking to convert to a plant-based diet, there are
other books with a more uplifting tone, that are equally
easy-to-understand. I would recommend "Crazy Sexy Diet" or "The
Kind Diet"