ncdu - A disk usage analyzer with an ncurses interface, aimed to be run on a remote server where you...
Pressbooks - Create books: print and ebooks
Baobab Disk Usage Analyzer - Baobab Disk Usage Analyzer is one of the light-weight disk analyzers that offers you a chance to view and monitor the disk usage & folder structure without any hassle.
Meminto Stories - Meminto Stories makes it easy for anyone to become the author of their own book.
K4DirStat - K4DirStat is the successor of former KDirStat.
Papermine - Create stunning digital booklets.