It's a slihtly modified version of original ruby-epub. Currently it can be load epub file, modify the attributes, and save it. You can find the original code in the master branch. = ruby-epub * https://ruby-epub.googlecode.com/ == DESCRIPTION: An EPUB (and associated file formats, like OPF) library for Ruby. == REQUIREMENTS: * Ruby 1.8 or later == INSTALL: * sudo gem install ruby-epub-0.0.1.gem == LICENSE: GNU GENERAL PUBLIC LICENSE Version 3, 29 June 2007 Copyright 2008 Arachne Jericho