I first reported on this last November and now I have another update. There is a listing at amazon.com for a new paperback book called Pretty Good Years : A Biography of Tori Amos . It is a 312 page paperback (ISBN: 1423400224) with Jay S. Jacobs and Tori Amos listed as authors and Hal Leonard listed as the publisher. The book has a release date of June 15, 2006 and you pre-order it now for $12.97. At this time we have no idea of the quality of this bio. We will have to wait and see on that. There is a photo of the book cover at that same Amazon listing that you can see to the right. (Thanks Victoria / Choirgirlcrashing and Jenn)
Jenn also informs me you can also find a listing for this book at halleonard.com.