Baldwin, Gordon. Looking at Photographs: A Guide to Technical Terms. Malibu: J. Paul Getty Museum, 1991.

Coe, B. and M. Haworth-Booth. A Guide to Early Photographic Processes. London: Victoria and Albert Museum, 1983.

Crawford, William. The Keepers of Light. New York: Morgan and Morgan, 1979.

Kissel, Eléonore and Erin Vigeau. Architectural Photoreproductions: A Manual for Identification and Care. New Castle, Delaware: Oak Knoll Press, 1999.

Mustardo, Peter, and Nora Kennedy. Photograph Preservation: Basic Methods for Safeguarding your Collections. Technical Leaflet Series 9. Mid-Atlantic Regional Archives Conference, 1994.

Nadeau, Luis. Encyclopedia of Printing, Photographic and Photomechanical Processes. New Brunswick: Atelier Luis Nadeau, 1989.

Newhall, Beaumont. The History of Photography from 1839 to the Present. Fifth Edition.. New York: Museum of Modern Art, 1988.

Reilly, James. The Care and Identification of Nineteenth-Century Photographic Prints. Kodak Publication G-2S. Rochester: Eastman-Kodak, 1986.

Wilhelm, Henry, with Carol Brower. The Permanence and Care of Color Photographs: Traditional and Digital Color Prints, Color Negatives, Slides, and Motion PicturesI. Grinnell, Iowa: Preservation Publishing Company, 1993.

Albumen Photographs, History, Science & Preservation: http://albumen.stanford.edu/

Alinari Corporate Site: http://www.alinari.com

American Institute for Conservation: http://aic.stanford.edu

American Museum of Photography: http://www.photographymuseum.com

California Museum of Photography, University of California Riverside:
http://www.cmp.ucr.edu/

Chicago Albumen Works: http://www.albumenworks.com/

Conservation Online, Resources for Conservation Professionals: http://palimpsest.stanford.edu/

Currier-McCombs Photographs Division of the William L. Clements Library, University of Michigan at Ann Arbor: http://www.clements.umich.edu/Photos.html

Davidson Art Center, Wesleyan University, Middleton, Connecticut:
http://www.wesleyan.edu/dac/coll/surv/phot/travel.html

Francis Frith Collection: http://www.francisfrith.com

Friedrich-Alexander Universitat Erlangen-Nurnberg, Germany
http://www.phil.uni-erlangen.de/~p1altar/photo_html/photographen/bonfils.html

George Eastman House International Museum of Photography & Film: http://www.eastman.org/

Guides to Quality in Visual Resource Imaging (from the Digital Library Federation, the Council on Library and Information Resources, and the Research Libraries Group): http://www.rlg.org/visguides/

Image Permanence Insititute. http://www.rit.edu/ipi

The Photographic Materials Group of the American Institute for the Conservation of Historic & Artistic Works: http://bosartconserv.com/pmg.htm

Policies and Guidelines for the use of Web Site Images, from the Visual Materials Section of the Society of American Archivists: http://www.lib.lsu.edu/SAA/webimages.html

Prints and Photographs Division, Library of Congress: http://lcweb.loc.gov/rr/print/pphome.html

Royal Photographic Society: http://www.rps.org

The Society of Architectural Historians: http://www.sah.org/

Sara Badia's online exhibition on Juan Laurent (a major nineteenth-century architectural photographer of Spain), University of Arizona: http://www.arts.arizona.edu/laurent/