And as a lawyer rather than a professional librarian (a fact he seems a tad defensive about), Palfrey is particularly good at explaining new legal challenges to preserving information. Libraries can purchase books and then lend them out as often as they like. But when libraries are renters rather than owners of digital materials — as is the case with e-books — their ability to lend is limited by licensing agreements. Because of longstanding copyright laws, “the digital age could perversely become an era with less accessibility, not more, than the analog age.”