Dengeki Bunko Official Bootleg Book

Dengeki Bunko Official Bootleg Book (電撃文庫公式海賊本), also known as Dengeki hp Official Bootleg Book (電撃hp公式海賊本), is the non-periodical official bootleg book published by Dengeki Bunko.

Principles
The title of the book is changed in every publication with specific theme. The first official bootleg book was released in 2003 titled Dengeki Vunko (電撃ヴんこ). The magazine is published with short stories, illustrations, and interviews from Dengeki Bunko authors and illustrators.