Hajime Isayama (1986-) broke into the manga industry in 2006 when he applied for the Magazine Grand Prix known as MGP promoted by Kodansha Ltd. with a short version of "Attack on Titan." The short received an award and inspired him to move to Tokyo at the age of twenty. In 2009, his first serial work, Attack on Titan, started in Bessatsu Shōnen Magazine. It won the Shōnen category of the 35th Kodansha Manga Award in 2011, and was nominated for both the 4th annual Manga Taishō award and the 16th annual Tezuka Osamu Cultural Prize.

Now published in English by Kodansha USA the manga has inspired five spin-off manga series, three light novel series, a television anime adaptation, several visual novels and video games, and a two part live-action film. It has become a multimillion unit seller worldwide, hitting the New York Times Best Seller list numerous time since 2013.