Kono Light Novel ga Sugoi! (このライトノベルがすごい! Kono Raito Noberu ga Sugoi!, lit. This Light Novel is Amazing!) is an annual light novel guide book published by Takarajimasha. The guide book publishes a list of the top ten most popular light novels according to readers polled on the Internet. An introduction to each of the works comes with each listing, along with an interview of the light novel's author or authors for first place. Many of the light novels that have been listed in this guide book were later adapted into anime series. Most of the light novels listed contain a series of volumes, but some single-volume light novels also get listed. The first release of the guide book was on November 26, 2004 and is the 2005 listing.

1. Sword Art Online

2. Toaru Majutsu no Index

3. Ben-Tou

4. Circlet Girl

5. Baka to Test to Shoukanjuu

6. Boku wa Tomodachi ga Sukunai

7. Seitokai no Ichizon series

8. Haruhi Suzumiya series

9. Idolising!

10. Iris on Rainy Days