In May 2021, Guinness World Records officially certified a special edition of the first volume of the "Attack on Titan" manga as the largest comic book ever published (via CrunchyRoll). This special release was designed with the series' titans in mind, presenting what a tankobon (which describes a typical, individual volume of a manga series) might look like if it were large enough for a titan to read. In total, the record-breaking special edition of the first volume of "Attack on Titan" is one meter long and 70 centimeters wide. Converted into feet, the comic book is roughly 3.3 feet long and 2.3 feet wide.

In order to officially qualify as a published comic book and not a one-off oddity, "Attack on Titan" publisher Kodansha was required to sell 100 copies of the titan-sized volume. Each individual unit, meanwhile, was priced at 165,000 yen, which is equivalent to about $1,516. The entire run sold out in about two minutes.

Kodansha ultimately coordinated this stunt with the publication of the final chapter of the "Attack on Titan" manga in March. The final batch of episodes of the "Attack on Titan" anime, meanwhile, will be released this coming Winter.