A book carries the same licensing terms as a DVD and as most digital media. However, the implementation of some of these terms is much easier or harder dependin

A book carries the same licensing terms as a DVD and as most digital media. However, the implementation of some of these terms is much easier or harder depending on the actual medium. It's easy to lend a book, it's hard to achieve the same thing with digital media. But in the EU at least, if a platform supports a way for a user to transfer their ability to a different user, then re-selling or lending through this mechanism is legal. The real abuse from digital media sales is the seller maintaing the right to revoke access to the work arbitrarily.