Aiyou Book Library (阿优书库) is an online fiction-reading website for readers who enjoy serialized and completed web novels. Its catalog spans fantasy, wuxia and xianxia, urban fiction, historical stories, gaming, science fiction, and women’s fiction. The site presents popular titles alongside editor-style recommendations, rankings, newly added books, and frequently updated chapter lists, helping visitors discover stories and follow ongoing releases.

Readers can browse by genre, check reading records, and use account features such as login and registration. The homepage highlights works by a range of authors, with summaries and recent chapter information for selected titles. Aiyou Book Library describes its purpose as making online novels accessible and encouraging the enjoyment of reading.

Its footer states that the novels are reposted works, with chapters uploaded by users, and that reposting is intended to promote the books and introduce them to more readers. The site also provides a mobile version and links to external search services