For the past few years, the Internet Archive has been invovled in litigation in a case that holds important implications for the future of Controlled Digital Lending. Controlled Digital Lending is a practice and legal theory whereby libraries lend digtial copies of print books that they own, subject to some important lending restrictions, potentially enhancing the ways that libraries can serve their patrons. As such, this case holds singificant implications for how libraries operate going into our increasingly digital future. The parties to the case recently submitted their appellate briefs, so now is a good time to review the history of Controlled Digital Lending and to look at what is going on with Hachette v. Internet Archive.