If you love reading eBooks and listening to digital audiobooks, this is something you have probably wondered about. Seems like it should be easy, right? Buy 100 digital copies of a book and let everyone borrow them! But it's not that easy. It can be a hard issue to explain for libraries. Publishers of econtent (eBooks and digital audiobooks) have control over how they license their books to libraries and library vendors like OverDrive and RBdigital.