A Certain Magical Index (Toaru Majutsu no Index) is a sci-fi light novel written by Kazuma Kamachi, with anime and manga adaptations. For the spinoff series Railgun, use [toaru-kagaku-no-railgun]
A Certain Magical Index (Toaru Majutsu no Index, とある魔術の禁書目録【インデックス】) is a sci-fi light novel series written by Kazuma Kamachi and illustrated by Kiyotaka Haimura. It has also been adapted into a manga, two seasons of anime, and a movie.
For the spinoff series, see toaru-kagaku-no-railgun.
For more info: