I just read Mark Frost's The Final Dossier.
It's good, hardly perfect, but really good.
Margaret Coulson's self-penned Eulogy, and several of Tammy Preston's introspective musing, such as the ending, are very emotionally powerful.
Also, the book give ''answers'' to many pondered questions, but hardly all of them.
Interesting items about Donna, Audrey, and many others...
Also, I don't think we've gotten the whole story about Annie Blackburn (Black Burn). She remains a most intriguing mystery to me.