Pseudepigrapha Railgun (偽典・超電磁砲 Niseten Rērugan?) is a collection of artwork by several artists, 4-komas, omakes, and fanfiction stories of the Toaru Majutsu no Index universe. It was originally released as a bonus for a special edition of the release of the 5th manga volume of Toaru Kagaku no Railgun on June 26, 2010.