Highly recommended for anyone with a boy in their family suffering from eating problems. I can't praise this book highly enough. The good news is that the author's son suffered Anorexia very severely but underwent a complete recovery which is very reassuring (a) for people whose children don't have such an extreme form of Anorexia, and (b) because it shows that recovery IS possible, even in extreme circumstances.
As well as recounting the author's own experiences, the book includes a wealth of useful information about treatment, etc. The book isn't cheap, but I believe it is worth every single penny.