The Elf on the Shelf is a toy that was created by Carol Aebersold and her daughters, Chanda Bell and Christa Pitts, and was published in the book of the same name in 2005. It is not an actual elf, but rather a doll that is placed in different locations to observe children and report back to Santa whether they have been good or bad. It is typically used as a decoration in homes during the Christmas season.