A tie-in to the two-season series Gravity Falls, The Book of Bill delves into Bill Cipher's origins and where he landed after the show's finale.

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.

Written by series creator Alex Hirsch, The Book of Bill is a humorous tie-in that reveals more about Gravity Falls and the mysterious Bill Cipher.

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.

After 13 days of determination, cipher-solving, and global teamwork, Gravity Falls fans discovered the Bill Cipher statue at the end of creator and voice actor Alex Hirsch’s worldwide scavenger ...

Alex Hirsch's Gravity Falls was the focus of Disney's "How NOT to Draw," with Bill Cipher looking to make a dimension-hopping deal.

While the initial fervor surrounding Bill Cipher’s statue ran into a number of dead ends, Hirsch reignited that excitement with a couple of cryptic tweets and a fresh code for fans to solve.

Alex Hirsch, #1 New York Times bestselling author, resuscitates this infamous villain and invites fans to a Bill's eye view of the Gravity Falls universe.

Bill Gates is backing a new online climate news publication called Cipher that is slated to start publishing on Sept. 29. The Cipher news site is being ...

The truth about Bill Cipher The demonic, floating triangle Bill Cipher, voiced by Hirsch himself, has become one of the show’s fan-favorite characters, as well as the most mysterious.