"I Wrote the Book" is a song by American country music singer Morgan Wallen, released on January 31, 2023 from the second sampler of his third studio album One Thing at a Time.
It was written by Morgan Wallen, Michael Hardy, and Cameron Montgomery, and produced by Joey Moi, Cameron Montgomery and Jacob Durrett.
[2] Wallen teased of the new song on his social media accounts on January 20, 2023.
[3] In January 30, 2023, Wallen revealed One Thing at a Time would be released at March 3, 2023, the same day Wallen released a sampler included "Last Night", "Everything I Love", and "I Wrote the Book".
[4] Billy Duke of website Taste of Country referred to the song as "the '80s style guitar Wallen relies on during "Everything I Love" returns here, paired with a drum track and power melody".