'Ascendance of a Bookworm: I'll Stop at Nothing to Become a Librarian'), also known as AoaB or Honzuki (本好き) for short, is a Japanese light novel series written by Miya Kazuki and illustrated by You Shiina.

It was serialized online from September 2013 to March 2017 on the user-generated novel publishing website Shōsetsuka ni Narō.

A manga adaptation of the first part with art by Suzuka was serialized online via the Niconico Seiga website from October 2015 to July 2018.

The story follows Urano Motosu, a book-loving post-secondary college student and soon-to-be librarian who ends up crushed to death beneath a pile of books at her house during an earthquake.

Urano awakens in the body of a weak, five-year-old girl named Myne in a world where books are scarce and only available to elites.

Myne, retaining her memories from her previous life, decides to create and print her own books so that she can read again.

As with the main series, the Hannelore sequel was originally published by Miya Kazuki as web novel.

), was illustrated by Suzuka, serialized in Comic Corona from October 2015 to July 2018, and was compiled into a total of seven volumes.

[5][170] A two-part OVA series (numbered collectively as episode 14.5, both airing on March 9, 2020) consisted of two parts titled "Eustachius's Incognito Operation Downtown" and "Visiting Missus Corinna".

The production of a third season was announced on July 12, 2020,[175][176] which ran for 10 episodes and aired from April 12 to June 14, 2022 on ytv,[177][178][b] and covers Volumes 3 and 4 of Part 2: Apprentice Shrine Maiden of the light novel.

[179][180] A fourth season by Wit Studio covering Part 3: Adopted Daughter of an Archduke of the light novel was announced on December 6, 2023.