title: Twenty years of the literature on acquiring out-of-print materials
abstract: This article reviews the last two-and-a-half decades of literature on acquiring out-of-print materials to assess recurring issues and identify changing practices. The out-of-print literature is uniform in its assertion that libraries need to acquire o.p. materials to replace worn or damaged copies, to replace missing copies, to duplicate copies of heavily used materials, to fill gaps in collections, to strengthen weak collections, to continue to develop strong collections, and to provide materials for new courses, new programs, and even entire new libraries
keyphrases: out-of-print materials recurring issues changing practices out-of-print books library materials acquisition