The following is a list of cryptograms from Gravity Falls. There is a cryptogram during the credits of each episode. They use Cesareciphers, Atbash ciphers, A1Z26 cipher and the Keyed Vigenere ciphers. Episodes 1-6 use the Caesar cipher, Episodes 7-13 use Atbash ciphers, Episodes 14-19 use the A1Z26 cipher, Episode 20 uses a Combined cipher (a combination of all three ciphers), and Episodes 21-present use a Vigenére cipher.journal #3 contains a Symbol substitution cipher.
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