This document is one part of a series intended to provide modern pattern books for architects and planners in need of practical solutions to specific problems. Each volume in the series is concerned with structures built for a specific purpose and contains several dozen projects, none more than a few years old, that are good examples of such structures. This volume contains data and plans for 38 different libraries: Ten in the United States, six in Great Britain, one each in Japan and Israel, and the rest in Germany and other European countries. The types of libraries include faculty, institute, university, college, and research; and city, regional, State, and national. The author has emphasized open plan libraries; and a very large range of sizes is represented -- from libraries that require only a few staff members to those that require several hundred. This volume, like its counterparts in the series, is presented in a highly concentrated form and designates the purpose of the building, the type of construction, essential data such as area and number of employees, and all floor plans and elevation information necessary to understand the functioning of the building. A related document is EA 004 559. (Author/MLF)