The survival of our cultural heritage is dependent on the survival of fragile materials in archives around the world: paper, parchment, photographs, audio recordings, videos, and, most recently, magnetic and optical formats. This thorough introduction helps librarians and archivists plan a preservation strategy and respond to the most pertinent threats to collections. Key topics covered include standards and policies; assessment; digital preservation; facility design; storage, handling, and transportation; disaster planning; exhibiting materials; access; and creation and use of copies or surrogates. Here is a comprehensive and practical guide to preserving your most valuable collections.