Author David Saunders, former keeper of conservation and scientific research at the British Museum, explores how to balance the conflicting goals of visibility and preservation under a variety of conditions. Beginning with the science of how light, color, and vision function and interact, he proceeds to offer detailed studies of the impact of light on a wide range of objects, including paintings, manuscripts, textiles, bone, leather, and plastics.   With analyses of the effects of light on visibility and deterioration, provides practical information to assist curators, conservators, and other museum professionals in making critical decisions about the display and preservation of objects in their collections.