Subtitles: A Legal Requirement of Popular Biographies

Or, in longer form, Subtitles: A Legal Requirement of Popular Biographies (even when we're completely out of clever ideas)

Or how About: Author: Because Somebody Actually Wrote The Book You Had To Read In High School

I am thinking of this because Somerville College's Senior Common Room has a copy of this book, because the potential consumers needed to be reminded that William Golding is the dude who wrote Lord of the Flies. (To be fair, I also remembered the book title but not the author.)