Issam El-Said (1938-1988) was an Iraqi artist and scholar. He earned an Architecture degree from Corpus Christi College, Cambridge in 1961; studied art at Hammersmith College of Art and Design, London and prepared for a PhD on the Methodology of Geometric Proportioning in Islamic Architecture at the University of Newcastle-upon-Tyne in 1988, which was sadly not completed due to his untimely death that year. As an artist, he achieved great renown and his works are in private and public collections worldwide including the British Museum, the Victoria and Albert Museum and the National Museums in Baghdad and Amman.
Keith Critchlow is Director of Research and Director of Visual Islamic and Traditional Arts at the Prince of Wales Institute of Architecture. An internationally known lecturer on Islamic art, he is the author of "Pythagorean Geometry," He lives in England.