csBooks - A smart ebook and comic reader

csBooks is a commercial ebook, comic, and book-management application for Linux. It is designed for readers who want to keep digital books organized while opening them in the same application. The reader supports EPUB, MOBI, PDF, and DJVU files, along with comic books in CBR and CBZ formats.

Books can be arranged into collections or folders according to genre or other preferences. Users can import individual files and folders by dragging and dropping them into the library. When books are imported, csBooks automatically generates thumbnails so they can be browsed by their covers. The library supports both card and list views, while light and dark modes are available for the application and reading windows. It also provides annotations and bookmarks, with annotations exportable to text files.

For comics, the viewer includes fit-width, single-page, two-page, and full-screen modes. These options support different ways of reading CBR and CBZ files within the same library environment. As Linux software in the Education category, csBooks is suited to readers managing study materials, ebooks, and comics on that platform. MirrorNest links directly to the official release rather than hosting a mirrored copy.