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.

A thorough and up-to-date guide to putting positive psychology into practice From the Foreword: "This volume is the cutting edge of positive psychology and the emblem of its future." -Martin E. P. Seligman, Ph.D., Fox Leadership Professor of Psychology, University of Pennsylvania, and author of Authentic Happiness Positive psychology is an exciting new orientation in the field, going beyond psychology's traditional focus on illness and pathology to look at areas like well-being and fulfillment. While the larger question of optimal human functioning is hardly new - Aristotle addressed it in his treatises on eudaimonia - positive psychology offers a common language on this subject to professionals working in a variety of subdisciplines and practices. Applicable in many settings and relevant for individuals, groups, organizations, communities, and societies, positive psychology is a genuinely integrative approach to professional practice. Positive Psychology in Practice fills the need for a broad, comprehensive, and state-of-the-art reference for this burgeoning new perspective. Cutting across traditional lines of thinking in psychology, this resource bridges theory, research, and applications to offer valuable information to a wide range of professionals and students in the social and behavioral sciences. A group of major international contributors covers: The applied positive psychology perspective Historical and philosophical foundations Values and choices in pursuit of the good life Lifestyle practices for health and well-being Methods and processes for teaching and learning Positive psychology at work The best and most thorough treatment of this cutting-edge discipline, Positive Psychology in Practice is an essential resource for understanding this important new theory and applying its principles to all areas of professional practice.