The covers for The Book of Bill, the upcoming Gravity Falls tie-in book, throws things back to the original animated series from Alex Hirsch.

The town of Gravity Falls, Oregon, may be fictional, but many fans were left wondering something: Was the Bill Cipher statue real, and was this one last mystery for the fandom to solve?

The Book of Bill is a new companion book to the show Gravity Falls, focusing on the character Bill Cipher. The book will reveal Bill's origin story, his villainous agenda, and the secrets of the ...

Gravity Falls‘ latest tie-in novel, The Book of Bill, has fittingly thrust fans back into code-cracking, cipher-hunting madness thanks to the book’s mysterious companion website. Let’s dive ...

Gravity Falls’ big villain, Bill Cipher, is getting his own book written by series creator, Alex Hirsch. And it’s for older readers! Out in July.

Alex Hirsch talks about Bill Cipher, Summerween, Gravity Falls, and which character deserves a 50 Shades of Gray-style spinoff. The Book of Bill is out now.