The Elf on the Shelf - where to get it, and what to do with it? This idea is genius! Looking to start up your own family Christmas tradition? Then this one is for you. The only limitations are your imagination ~ don't worry, we can help you out there. The Book: the gorgeous hard cover book is written by the elf, sharing Santa's secret on how he manages to keep an eye on so many children during the year. Carefully incorporating rhythm and rhyme alongside colourful illustrations the elf reveals all. He/she will report back to Santa each night. PS Got a pretty nifty online book price comparison too.