Mailer basically cops out of the project by sending a letter back to David's editor, which is then printed as Mailer's submission. It's quite funny and he coins the term "the fonts of Fucking," which made me wonder if there isn't a typesetter out there considering the best fonts for erotic fiction. I'm imagining a seductive, almost scripty, serif that sows seeds into the soil as it reads along the page, but I digress. If you haven't seen this book, find it. Julian Barnes and the letter "U" is my second favorite...so sinister that word "unless."
Oh and if you don't know who David Hockney is, you might recognize one of the models that appears moderately naked in many of his paintings as his mentee/muse, Ian Falconer, well known for his New Yorker illustrations and the famous children's book character, Olivia (the Drag Bio-Queen Pig)...ah, the small uber-gay world of publishing.