This is back in print, and on Kindle as well. I remember my dog-eared copy that I quietly bought read when I was way, way, way too young, like 11 or 12 in the early ’90s - a very, very dark and unsanitized piece of spinoff material from when the show was the biggest thing on mainstream network TV. It is in fact canon as Laura’s diary, the same crucial one seen on the show, and written by David Lynch’s talented daughter, Jennifer, who’s gone on to make her own crazy films.
It’s definitely worth a read for any TP fan. Now all they have to do is re-issue the other excellent and canon spinoff book, The Autobiography of F.B.I. Special Agent Dale Cooper: My Life, My Tapes, which dealt with Cooper’s past dating back to Windom Earle and Caroline, all the way back to childhood.
(Tagged for Jeff where he can’t avoid it when he’s sober)