Kono Light Novel ga Sugoi!
Kono Light Novel ga Sugoi! 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 and votes from "collaborators". 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. The latest release is the 16th volume on November 25, 2019 and is the 2020 listing.
A Certain Magical Index has appeared in the top 10 in 10 out of 15 issues, while Sword Art Online has appeared in 9, Baka and Test has appeared in 6, and the Haruhi Suzumiya series, the Book Girl series, and the Monogatari series have all appeared in 5. A Certain Magical Index and Sword Art Online also hold the longest streak in the top 10, with 9 issues in a row each. My Youth Romantic Comedy Is Wrong, As I Expected has been ranked first 3 times, more than any other series.
The guide book also ranks male characters, female characters and illustrators from all works released each year. Only on two occasions did a series rank first in all four lists in the same issue: A Certain Magical Index in 2011, and My Youth Romantic Comedy Is Wrong, As I Expected in 2015.
Hall of Fame
The following are series inducted into the Hall of Fame. Series in the Hall of Fame will not be considered in future rankings.| Year inducted | Title | Author | Artist | Imprint |
| 2016 | My Youth Romantic Comedy Is Wrong, As I Expected | Wataru Watari | Ponkan8 | Gagaga Bunko |
| 2020 | Sword Art Online | Reki Kawahara | Abec | Dengeki Bunko |
| 2020 | A Certain Magical Index | Kazuma Kamachi | Kiyotaka Haimura | Dengeki Bunko |
| 2020 | The Ryuo's Work is Never Done! | Shirow Shiratori | Shirabi | GA Bunko |