Billy Joel's memoir, "The Book of Joel", was written and ready to be published and released. Then unexpectedly the whole project was nixed. According to insiders we now know why: Joel's ex-wife Katie Lee didn't like what the book had to say about her:

His book apparently shows her to be a spoiled person who lived the rock star life and was trying to get famous herself. When she got a copy of the manuscript, she was very upset, and stopped it from getting published. - 411mania.com

Fred Schruers, who co-wrote the book with Joel, declined to comment on the speculation. Meanwhile Katie Lee recently released a fiction book entitled, "Groundswell".