Attack on Titan: The Anime Guide (進撃の巨人 ANIMATION SIDE 吼 Shingeki no Kyojin ANIMATION SIDE Kou?) is the official guidebook for the Attack on Titan anime, written by Hajime Isayama and illustrated by Suzuhito Yasuda. It is 176 pages long. On May 21, 2016, Kodansha USA announced their licensing of the guidebook and it is set to be released in April of 2017.