Alex Hirsch’s The Book of Bill, the first Gravity Falls book for adult readers, proved immensely popular with fans when it hit store shelves last July. The illustrated novel (of sorts) debuted at No. 1 on The New York Times Best Seller list and remained on the list through the holiday season. Gravity falls fans who haven’t picked up Bill’s origin story, as told by him, can save 50% on the newly released collectible edition with a slipcase and numerous extras. Released September 23 for $40, The Book of Bill Limited Collector’s Edition is already discounted to only $20.54 at Amazon.
If you’re shopping for a Gravity Falls fan this holiday, the new edition would make for an awesome gift. The original hardcover edition wouldn’t be a bad gift either–unless they already have it, of course. The Book of Bill’s standard hardcover edition is on sale for only $10.67 (was $27) at Amazon, where it holds a 4.8/5 star average based on 5,300+ customer reviews.