Successful Glossary of Common Library Terms. Although numerous books, both theoretical and practical, have been published on the subject of library terminology anti the conservation of archival materials, there would seem to be, a need for one that approaches the subject by examining the meaning and usage of the many terms, expressions, and names pertaining to the various subjects. Although this dictionary is intended first and foremost for those actively involved in one or more aspects of the overall field of library terminology and book conservation, including bookbinders, conservators of library and archival materials, and the like. It is perhaps no less intended for those working in related fields, such as bibliography and librarianship, where the many terms and expressions relating to the overall field may be less familiar and even more confusing. The compilers accept full responsibility for the selection of terms for inclusion, as well as for the even more difficult task 0 of rejection. The definitions themselves, although herein the responsibility of the same persons, were, whenever possible, drawn from the most authoritative sources available (as indicated by the number in parentheses at the end of a definition, which refers to the sources and bibliography section) and supplemented 46 by the experience of the authors. Where a term has more than one definition, each is numbered and arranged in its descending order of significance relation to library terminology.