Daniel Hahn (born 26 November 1973) is a British writer, editor and translator. He is the author of a number of works of non-fiction, including the history book The Tower Menagerie, and one of the editors of The Ultimate Book Guide, a series of reading guides for children and teenagers, the first volume of which won the Blue Peter Book Award. Other titles include Happiness Is a Watermelon on Your Head (a picture-book for children), The Oxford Guide to Literary Britain and Ireland (a reference b…