Morgan & Morgan, Inc., 1st Edition, 1961, New York. 111 pages, 5 x 7 1/4", Soft Cover, in good condition. .minor rubbing on cover and bottom cover and first few pages show water damage on very bottom. Inside pages very clean. This guide ot the Ansel Adams Zone System of Previsualization grows out of more than 20 years of teaching the system to students, privately and in schools. As a means of bringing students to a new and deeper grasp of the materials, processes and the very nature of photography, no better teaching tool exists. For the professional and commercial photographer, the Zone System results in a welcome economy of time and material. The ability to call his shot, everytime, adds immeasurably to the professional's confidence and competence.