The Lumistella Company partners with HarperCollins to create a new line of books. The holiday preparation begins! The Lumistella Company is collaborating with HarperCollins Publishers to create a series of Elf on the Shelf books. The series will encompass 11 The Elf on the Shelf universe-themed titles set for release over the next five years. In addition to the series, William Morrow Cookbooks will publish a holiday-inspired cookbook in the Fall of 2024.