It's been many years (10? more?) since I've read the book, and while I don't recall every detail of it, I do recall being extremely interested the entire time I was reading it. There is more to the book than the Salinger bit, and Maynard herself has had an interesting life -- she wrote her first memoir, "Looking Back," when she was 18!
I don't want to spoil the book for anyone who hasn't read it, but I will add this paragraph from the book, the last of the author's notes at the start of the book (emphasis mine):