Yahoo! Japan News reported on Monday that Hajime Isayama's Attack on Titan manga has surpassed 52 million copies in print worldwide. The manga had 50 million copies in print worldwide as of August.

Isayama's Attack on Titan manga depicts the battles between humans and the giants who now rule the world outside humans' walled enclaves.

The manga has been adapted into a 25-episode television anime series, with a second season planned for 2016. The manga has also inspired two anime compilation films, several manga and light novel spinoffs, and several video games. One of the spinoffs, Attack on Titan: Junior High, has inspired its own TV anime that premiered earlier this month. Another spinoff, Attack on Titan: No Regrets, inspired a two-episode original anime video series.