The document discusses the history and current state of ebooks and ebook readers. It provides a timeline of important developments in ebooks dating back to 1971, with many major companies and products launching between 2005-2010. The document also outlines different ebook formats, the support of formats on major ebook readers, differences in DRM and other features among devices. It shares some examples of universities experimenting with ebook readers in education but students still prefer printed books for note-taking and other learning benefits.