I was interested to read the book because Peggy is quite an enigmatic figure. Her treatment centre in Canada was shut down under contraversial circumstances and there was even an exposé book written (her supporters and critics are at war in the amazon comments section). And now I notice she's back and blogging again with a new book in the works. I doubt we'll ever know the truth.
Speaking of Hilde Bruch, I'm a massive fangirl. If Wasted is the ana bible, Hilde is my Marya Hornbacher. But seriously, she was writing in the 1970s and her interpretations of EDs always ring true and still seem relevant. I don't think theres one book I'd recommend as fully explaining EDs but The Golden Cage is a good starting place for the uninitiated. It does blame family dynamics a bit too much but apart from that, good stuff. Here's a quote I like:-
"It is perplexing that this direct influence of hunger on the psychic functioning of anorexics has been overlooked. (...) Many of the more alarming symptoms - splitting of the ego, depersonalisation, sever ego defects - are directly related to the starvation itself. A meaningful psychiatric evaluation is possible only after the worst effect of malnutrition have been corrected." It's not a revelation now but it wasn't widely practiced when she was writing.