This e-book reader is compatible with loads of file formats, including pdf, doc, txt, rtf, html, djvu, chm, fb2, wolf, mp3, png, tiff, gif, jpg and bmp! The Bebook One even features a display system using electronic ink, so reading is as easy on your eyes as when you're reading a paper novel. This device's long battery life allows you to read up to 7,000 pages on a single charge