The first digital camera came on the market in 1986. In only a quarter century, the technology has fundamentally revolutionized the way we conceive of and take pictures. From camera phones to the latest digital SLR technology, the plethora of digital cameras on the market has made taking a picture both easier and more complicated than ever. David Pogue, tech columnist for the New York Times, and Katrin Eismann, chair of the Digital Photography Department at the School of Visual Arts, look into the history of digital photography, explain how digital photography works, and tell us which cameras are the best on the market. Katrin Eismann's latest book is Real World Digital Photography and David Pogue is the author of David Pogue's Digital Photography: The Missing Manual.