Written by the prominent art historian and authentication expert David Rudd Cycleback, Judging the Authenticity of Photographs: The Basics for Collectors covers the essentials to identifying, dating, understanding and authenticating photographs from the origins in the 1800s to today. It covers the whole range of photos, from tintypes to Polaroids, cabinet cards to wirephotos, salt prints to family snapshots, movie stills to real photo postcards. Topics include identification of photo processes, dating styles, identifying images made from the original negatives, stamps and tags, identifying fakes and reprints, and more. A concise guide essential for starting collectors and amateur genealogists to veteran auctioneers, dealers and historians.