In examining 20th-century photography, [Kelsey] fearlessly wades into the war of words among critics, curators, philosophers and artists alike trying to nail down the jelly-like nature and importance of photography. His prose is concise and academically framed but with a pleasing lack of jargon that makes this book accessible to a non-academic reader, unlike many books published on photo history in the past two decades… Kelsey’s book is a first incursion into an issue that has not been well explored in print, and its conclusions and assertions will certainly be the start of many years of arguments… It should be a standard text for those studying the history of photography in depth. But it also gives lay readers an opportunity to look afresh at the canon of photography and gain a deeper understanding of the constant tension between the camera’s mechanical nature and the photographer’s art.