Essential facts, advice, lists, documents, guidelines, lore, wit, and wisdom: Along with fun and irreverence, it?s what readers have come to expect from the Whole Library series. This latest entry zooms in on the cutting edge -- the digital library. In a one-volume compendium that?s by turns encyclopedic, useful, and engaging, contributors provide an overview of digital libraries, covering the state of information, issues, customers, challenges, tools and technology, preservation, and the future.