A showcase of ideas that showcases the wide range of ideas that have shaped and continue to shape photographic practice: from the basic factors of change, such as the camera obscura, the shutter and digital photography, to less obvious ideas, such as children's cameras and geographical information systems. From the first wooden cameras to the complex image-making of today: photography as a constantly developing product of projection, assimilation and imagination. A summary of the history of photography as a continually developing invention, shaped by ideas generated by science and technology, as well as in response to changing social conditions, philosophies, artistic movements and aesthetics. Compared to other visual arts, photography is a young medium, open to trying new things. We have seen it join journalism, travel, science, medicine and art. Although these disparate genres have developed independently, they are founded on some basic ideas of photography, such as objectivity and realism. A summary of the innovative concepts, cultural and social incidents that have influenced the development of photography and the technologies and movements. Among the 100 ideas presented in this book are facts about the daguerreotype, the calotype, the nude, lenses and lenses, the photographic shot, the stereoscope, colour, the ferrotype, small cameras, postcards, artificial light, film, images that sell, the decisive instant, invisible light, street photography, Polaroid, photorealism, photoconceptualism, photography and video, and digital photography. Contents Introduction 6 100 ideas that changed photography 8 Glossary 208 Recommended reading 210 Author Mary Warner Marien is Professor Emeritus in the Department of Fine Arts at Syracuse University, New York. She lectures in the United States and Europe, and in 2008 was the recipient of an Andy Warhol Foundation award. She is the author of other books and articles on photography.