| Library War | |
 Library War, the first light novel in the series. | |
| 図書館戦争 (Toshokan Sensō) | |
|---|---|
| Genre | |
| Light novel | |
| Written by | Hiro Arikawa |
| Illustrated by | Sukumo Adabana |
| Published by | MediaWorks |
| Original run | February 10, 2006 – November 10, 2007 |
| Volumes | 4 |
| Manga | |
| Library Wars: Love & War | |
| Written by | Hiro Arikawa |
| Illustrated by | Kiiro Yumi |
| Published by | Hakusensha |
| English publisher | |
| Magazine | LaLa |
| Demographic | Shōjo |
| Original run | September 24, 2007 – December 24, 2014 |
| Volumes | 15 |
| Manga | |
| Toshokan Sensō Spitfire! | |
| Written by | Hiro Arikawa |
| Illustrated by | Yayoi Furudori |
| Published by | ASCII Media Works |
| Magazine | Dengeki Daioh |
| Demographic | Shōnen |
| Original run | January 2008 – June 2008 |
| Volumes | 1 |
| Light novel | |
| Bessatsu Toshokan Sensō | |
| Written by | Hiro Arikawa |
| Illustrated by | Sukumo Adabana |
| Published by | ASCII Media Works |
| Original run | April 10, 2008 – August 9, 2008 |
| Volumes | 2 |
| Anime television series | |
| Directed by | Takayuki Hamana |
| Written by | Takeshi Konuta |
| Music by | Yugo Kanno |
| Studio | Production I.G |
| Licensed by | |
| Original network | Fuji TV (Noitamina) |
| Original run | April 10, 2008 – June 26, 2008 |
| Episodes | 12 |
| Original video animation | |
| Directed by | Takayuki Hamana |
| Music by | Yugo Kanno |
| Studio | Production I.G |
| Released | October 1, 2008 |
| Runtime | 24 minutes |
| Other | |
| |
Library War (図書館戦争, Toshokan Sensō) is a Japanese light novel series by Hiro Arikawa, with illustrations by Sukumo Adabana. There are four novels in the series, though only the first novel is called Toshokan Sensō; the subsequent novels are named Toshokan Nairan, Toshokan Kiki, and Toshokan Kakumei. The novels were published by MediaWorks between February 2006 and November 2007. Two volumes of a spin-off series entitled Bessatsu Toshokan Sensō (別冊 図書館戦争, lit. Supplement: Library War) have also been published by ASCII Media Works.
Two manga adaptations were published by Hakusensha and ASCII Media Works. A 12-episode anime adaptation produced by Production I.G aired on Fuji TV's Noitamina programming block between April and June 2008. Two Internet radio shows started in April 2008 meant to promote the series which are hosted by voice actors of the anime. An anime film by Production I.G was released on June 16, 2012. A live action film was released on April 27, 2013, with its sequel released on October 10, 2015.
By April 2008, the original four novels and volume one of the spin-off series have sold over 1.25 million copies in Japan. In 2008, Library War received the 39th Seiun Award for Best Japanese Long Work.