Ascendance Of A Bookworm (本好きの下剋上 ~司書になるためには手段を選んでいられません~) is a Japanese fantasy light novel series written by Miya Kazuki. It has a manga adaptation illustrated by Yu Shiina and an anime adaptation as well with 2 seasons. The third season was promised for Fall 2022.
PLOT: Urano Motosu adores novels and has an insatiable interest in reading literary works of all genres. She is on her way towards becoming a librarian, but her existence is cut short by an accident. As she takes her final breath, she desires she could read a lot of books for her next life.
As if fate had heard her prayer, she awakens as Myne, a weak five-year-old girl from the middle ages. Her enthusiasm is the first thought that springs to mind. She attempts to find anything to read but is frustrated with the lack of books available to her.

Books must be written and replicated by hand alone without printing, causing them very pricey; as a result, only a few nobles can manage them—but this will not deter Myne. She will demonstrate that her desire to read is ironclad, but if there are no books published, she would therefore create them herself!
Based on the blu-ray release in Japan, season three of this amazing isekai anime will have only 10 episodes! What are your views on it? Stay tuned for more!
Source: Book Lover Website