Curious to learn all about The Elf on the Shelf? This cute, fun and very mischievous elf will bring loads of joy and laughter to your household. We introduced our Elf on the Shelf a few years ago to my kids, at the time they were 6, 8 and 8. Knowing now how much fun our elf is I really wish I had started this super enjoyable tradition when they were much younger.