Photographs of the Past: Processes and Preservation provides a comprehensive introduction to the practice of photograph preservation, bringing together more information on photographic processes than any other single source. Introductory chapters cover issues of terminology; the rest of the book is divided into three parts: positives, negatives, and conservation. Each chapter focuses on a single process--daguerreotypes, albumen negatives, black-and-white prints, and so on--providing an overview of its history and materials and tracing the evolution of its technology. This book will serve as an irreplaceable reference work for conservators, curators, collectors, dealers, conservation students, and photographers, as well as those in the general public seeking information on preserving this ubiquitous form of cultural heritage.