David Cycleback is an art and artifacts scholar working in the areas of authenticity, theoretical cognitive science and philosophy, and is an internationally known authentication expert. He was runner-up for the International Book Award for Philosophy for Noise Music: Cognitive Psychology, Aesthetics and Epistemology and a three-time Eric Hoffer Award Finalist. Reprinted by Beijing's Three Shadows Art Center, his guides Judging the Authenticity of Prints by the Masters and Judging the Authenticity of Photographs were the first comprehensive books on the subjects published in China. He has advised and authenticated artifacts for major institutions, was a writer for the standard academic reference Encyclopedia of Nineteenth-Century Photography and teaches courses in art authentication. His other books include Art Perception; A Brief Introduction to Ancient Counting Systems for Non-Mathematicians; Identifying Antique Commercial Printing Processes And The Basics of Authenticating Antique and Art Prints; and Identifying Common Materials in Antiques. He has been cited by the Australian National Archives, Museum of Innovation and Science, Indiana Historical Society, The Jewish Theological Seminary, Saylor Academy, Encyclopedia of Journalism, University of Wisconsin (The Scout Project), Columbia University Computer Music Center, University of California Center for Learning in the Arts and Sciences and Sydney University (Business of Art).