This blog post on the EFF website quotes Cory Doctorow, who discusses ways in which Digital Rights Management (DRM) destroys the access to books that we enjoy today:

Anyone who claims that readers can’t and won’t and shouldn’t own their books are bent on the destruction of the book, the destruction of publishing, and the destruction of authorship itself. We must stop them from being allowed to do it. The library of tomorrow should be better than the library of today. The ability to loan our books to more than one person at once is a feature, not a bug. We all know this.