Since the invention of electrical service, architects have used lighting technology to define forms and areas. Light could be used to convert a simple facade into an interface between the city and the world. Advances in illumination systems and, above all, the increasing use of LED technology have created works of art from the facades of corporate buildings, museums, institutions, and commercial centers. Illustrated with large color photographs, up to 20 x 9 1/2 inches, this book features a selection of projects that were designed around concepts of using light in certain spaces, with the intention of transmitting mood, artistic expression, or information.