Mr. Fidler is a leading authority on the preservation of terra cotta buildings. He is the author or editor of numerous publications including “Architectural Ceramics” and “Stone” in the English Heritage Research Transactions series. Mr. Fidler is currently practice leader for preservation technology with Simpson Gumpertz & Heger Inc., a multi-disciplinary firm that designs, investigates and rehabilitates buildings and structures of all types in over 39 countries around the world. He was formerly the Conservation Director at English Heritage in London where he was responsible for national technical policy development, scientific research, technical advice and services, standard-setting, training, outreach and publications. His responsibilities also included the management of 420 heritage sites.