Brad Tolinski and Chris Gill have compiled over 50 hours of interviews over the years (beginning in the late 80s) with Eddie Van Halen and have over the course of 336 pages let Eddie do the talking about all things Van Halen.
Eruption: Conversations With Eddie Van Halen is a fascinating read as you get what Eddie talking shop with Eddie as he talks about the various producers VH has worked with over the years (Templeman, Fairbairn, Johns, Post and Shanks).
And yes there is the fallout with the singers that being David Lee Roth and Sammy Hagar.
Lots of guitar talk as well but for me the real deal in regards to this book were new interviews with Michael Anthony, Gary Cherone, Ray Danniels (worth the price of the book alone), Steve Lukather and Steve Vai.
Also the book has a bunch of unreleased photos which adds to its value.
By reading what is on these pages you can understand that Eddie was comfortable talking to both Tolinski and Gill as they both wrote for guitar magazines so that helps the vibe in this book.