Elf on the Shelf A Birthday Tradition The Elf on the Shelf: A Birthday Tradition tells the little-known story of the North Pole birthday tradition. Includes special instructions for families to invite their scout elf for a birthday visit. The book also includes a special Claus Couture Collection Birthday Outfit just for the elf. The Elf on the Shelf: A Birthday Tradition t is the long-awaited sequel to the bestselling Elf on the Shelf Christmas Tradition Written in signature rhyme by best-selling authors Carol Aebersold and Chanda Bell, and illustrated with Co Steinwarts classic watercolor art, the book represents the first original title from this award-winning team since the publication of The Elf on the Shelf in 2005.