Over the concluding decades of the twentieth century, the historic preservation community increasingly turned its attention to modern buildings, including bungalows from the 1930s, gas stations and diners from the 1940s, and office buildings and architectural homes from the 1950s. Conservation efforts, however, were often hampered by a lack of technical information about the products used in these structures, and to fill this gap Twentieth-Century Building Materials was developed by the U.S. Department of the Interior’s National Park Service and first published in 1995. Now, this invaluable guide is being reissued—with a new preface by the book’s original editor. With more than 250 illustrations, including a full-color photographic essay, the volume remains an indispensable reference on the history and conservation of modern building materials. Thirty-seven essays written by leading experts offer insights into the history, manufacturing processes, and uses of a wide range of materials, including glass block, aluminum, plywood, linoleum, and gypsum board. Readers will also learn about how these materials perform over time and discover valuable conservation and repair techniques. Bibliographies and sources for further research complete the volume. The book is intended for a wide range of conservation professionals including architects, engineers, conservators, and material scientists engaged in the conservation of modern buildings, as well as scholars in related disciplines.

One of the greatest challenges faced today by those responsible for ancient cultural sites is that of maintaining the delicate balance between conserving these fragile resources and making them available to increasing numbers of visitors. Tourism, unchecked development, and changing environmental conditions threaten significant historical sites throughout the world. These issues are among the topics dealt with in this book, which reports on the proceedings of an international conference on the conservation of classical sites in the Mediterranean region, organized by the Getty Conservation Institute and the J. Paul Getty Museum. The book includes chapters discussing management issues at three sites: Piazza Armerina, Sicily; Knossos, Crete; and Ephesus, Turkey. While visiting these sites, conference participants examined how issues raised at these locales can illuminate the challenges of management and conservation faced by complex heritage sites the world over. Additional chapters discuss such topics as the management of cultural sites, the reconstruction of ancient buildings, and ways of presenting and interpreting sites for today's visitors.

This authoritative catalogue of the Corcoran Gallery of Art's renowned collection of pre-1945 American paintings will greatly enhance scholarly and public understanding of one of the finest and most important collections of historic American art in the world. Composed of more than 600 objects dating from 1740 to 1945.