THE KEEPERS OF LIGHT : a history & working guide to early photographic processes.

Still a primary source for its joining of considerable technical data on early photographic processes with the cultural history of photography, Crawford's book is an essential read for anyone interested in how photographs are made or who is beginning to work with non-silver processes. A bibliography provides additional readings. The practitioner should also consult Bea Nettles' Breaking the rules : a photo media cookbook TR350 .N47 1992, John Barnier's Coming into focus : a step-by-step guide to alternative photographic printing processes TR350 .C66 2000, and Christopher James' The book of alternative photographic processes TR350 .J35 2009.