Rochester, New York: Eastman Kodak Company 2009. Later printing. XII, 116 pages. 8 1/2 x 10 3/4 inches. 4to. Publisher's printed wrappers. INCLUDES the often missing large trifold "Flowchart for Identification Guide" A bright clean copy SIGNED by author Reilly on the title page. Fine. Wraps. 
First published in 1986, an exceptionally useful reference work on photographic identification, and the core textbook used in Rare Book School's class "I-35 The Identification of Photographic Print Processes" The book covers the periods during which the various processes were used, how they worked, and how to identify them as well as typical deterioration and preservation issues. The only print reference work of it's kind that we are aware of.
James M. Reilly is Professor, Rochester Institute of Technology (RIT) and Director of its Image Permanence Institute (IPI). He is also the Co-Director of the Advanced Residency Program in Photograph Conservation (ARP) at the George Eastman House in Rochester.
Includes the very useful large tri-fold chart that can be used as a "cheat-sheet" for helping identify processes.