A couple of friends of mine own a small label and publishing company in the Pacific Northwest and are putting out their first book:
RUSTED METAL: A Guide to Heavy Metal and Hard Rock Music in the Pacific Northwest (1970-1995)
http://nwmetalworxmusic.com/collections/1262739-books-by-nw-metalworx-musicThose of you who love all the bands that came out of Seattle over that quarter-century should check it out. Going to be some great interviews with Seattle legends in there, and the book will serve as the definitive tome for rock and metal from the Pac NW region.
Three options - hard cover deluxe, paperback, and digital. I've gotten a sneak peek, and I can't wait to read it. Total labor of love from these guys.