He said in an interview in 2017 that he'd never write one because his music is essentially his autobiography, but if you want to read what other members of his family have written about him, you can check out the stuff his parents have written. Daphne has a new one called Time, Perspective, and Paradise to be released in early December, but her current memoirs are There and Back Again (2006) and Finding Myself (2013). The first one is about her family life, and the second one is about her career. And James wrote one in 2008 called Kick and Run.