FBReader is an e-book reader. FBReader supports several free e-book formats: html, chm, plucker, palmdoc, oeb, rtf, and fb2. It also supports direct reading from tar, zip, gzip, and bzip2 archives. FBReader keeps the last open book and the last read positions for all opened books between runs. Other features are automatic language and encoding detection, automatic hyphenations, full-screen mode, and screen rotation.