"Not just songs, either. I've been writing in a journal for the past six or seven years, so I've got the entirety of Fleetwood Mac's history completely written. It could be such an incredible book. There are books within books, about all the albums, our tours, the relationships -- Lindsey and Stevie trying to work together, John and Chris trying to work together. It's all there. You have no idea of all the stuff that's gone on in this group. It's been fascinating."