https://deathnote.fandom.com/wiki/Death_Note_13:_How_to_Read _Death Note 13: How to Read is an official encyclopedia-style guide to the Death Note manga series. It including character bios, storyline summaries, interviews with creators Tsugumi Ohba and Takeshi Obata, production notes, and commentaries. It also includes the pilot chapter of the manga and Ryuk's Human Observation Journal. In Japanese, the guidebook is titled Death Note How to Read 13 (styled as DEATH NOTE HOW TO READ 13), which is the official title on the Japanese copyright page. This title is also on the Viz Media English edition copyright page, as it's based on the Japanese edition, but the English edition is officially styled Death Note 13: How to Read, such as on the guidebook's back cover. The Japanese cover also has the kanji for Truth, so an alternative Japanese title is Death Note How to Read 13 - Truth (DEATH NOTE HOW TO READ 13 真相)._ _Everything contained within this book is official, written by the original author and artist, and is considered canon for the manga series._