Nanatsu no Taizai Official Fanbook: Sinful Anatomy Book「七つの大罪 公式ファンブック 解体罪書, Nanatsu no Taizai Kōshiki Fanbukku Kaitai Shinsho」, is the first fanbook of the manga, Nanatsu no Taizai.
- Character profiles
- Description of ranks
- A Dangerous Errand omake.
- Artwork from author
- Map of Britannia
- Info on the sacred treasures
- It was released on the same day along with Volume 13 and Nanairo no Tsumi, an illustration book.
- The title of this book is most likely a reference to Sugita Genpaku's Kaitai Shinsho.