I'm not really sure how credible this site is. I read some of the ''success stories'' and they don't seem real. It would be nice if there were before and after pictures that displayed noticeable weight loss. The book claims to have the secret to permanent weight loss ''effortlessly'' but the fact is, there is no effortless way to lose weight. The book is only $19.17 plus you get 3 free books as well. So if you're really desperate and looking for other options you don't really have much to lose here and maybe you'll actually find something useful in the book.