The only book about bums you'll need this Christmas This is a book for anyone who has a bum or anyone who likes Christmas or anyone who has a bum AND likes Christmas! It's a celebration of Santa's bum and Rudolph's bum and tinsel, twinkle and turkey bums. From bestselling pair Kate Mayes and Andrew Joyner comes The Christmas Bum Book, a book you'll want to deck the halls with - fa, la, la, la, la bum!