- Description: A self-published book which compiles works by multiple artists that all focus on a single theme such as a character, franchise, or fetish. Primarily only in the Doujinshi or Non-H categories.
- Notes: Incomplete galleries do not qualify. Not to be confused with artbook or soushuuhen.
- Japanese: 合同誌・合同本・合作本
- Slave Tags: Misc - with notable synonyms goudoubon and gassakubon.