Book excerpt: The Metropolitan Museum of Art houses one of the world’s largest and most comprehensive collections of works of art from antiquities to modern and contemporary material. Their preservation is a responsibility shared by the many individuals employed at the Museum who oversee and have direct contact with the collection on a daily basis. The Care and Handing of Art Objects—first published in the 1940s and continually updated—offers a guide to the best practices in handling and preserving works of art while on display, in storage and in transit. It explains many of the fundamental principles of conservation that underlie these methods. One of its goals is to make the complexities of caring for a collection readily accessible. The first part offers basic guidelines for the preservation of the diverse types of materials and art objects found in the Met. Each chapter addresses the physical characteristics specific to the particular category, and the environmental, handling and housing factors to which one should be alert to prevent damage and ensure their preservation. Written by experts in the respective specialty, it addresses the Museum’s vast holdings summarizing the most critical preservation issues, many of which are amplified by photographs. As the table of contents makes evident these range from paintings on canvas and works on paper and photographs to furniture and objects made of stone, wood and metals to arms and armor, upholstery, ethnographic materials and many others. Part II succinctly describes factors that affect the collection as a whole: among them, current environmental standards for temperature, relative humidity, light exposure, storage and art in transit. Based on Museum protocols it addresses emergency preparedness and response, and integrated pest management. For easy reference, it includes charts on storage and display conditions, on factors contributing to deterioration, and a glossary of conservation terms, principles, and housing materials referenced in the individual chapters. Drawing upon the knowledge of conservators, scientists, and curators from many different departments, as well as technicians and engineers whose expertise crosses boundaries of culture, chronology, medium and condition, The Care and Handing of Art Objects is primarily directed to staff at the Met. It is, no less, an invaluable resource for students, collectors, small museums, museum study programs, art dealers, and members of the public who want to enhance their understanding of how works of art are safeguarded and the role environment, handling and materials play in making this possible.