The Hobbit

The Hobbit was, according to an old man at Bernice Summerfield and Jason Kane's wedding, "not so much a book, more a way of life." When he gave the newlyweds a signed first-edition copy of the novel, he told them it changed his life beyond recognition. (PROSE: Happy Endings)

Benny thought Gully looked like a character from The Hobbit. (PROSE: Digging up the Past)

Behind the scenes
Though apparently unremarked upon in DWU fiction, The Hobbit was written by J. R. R. Tolkien and is a prequel to The Lord of the Rings.