12 places to find the best free e-books for thrifty bookworms | Mashable
I made chess eBook Reader that uses AI to make chess books interactive (Update after 2 years). Open a PDF, ePub, or DjVu book, and let it analyze it, once finished, double-click
GitHub - koreader/koreader: An ebook reader application supporting PDF, DjVu, EPUB, FB2 and many more formats, running on Cervantes, Kindle, Kobo, PocketBook and Android devices