Duncan ***** , M. A. , Dip. Ed. , is the author of “Man and the Stars”, “New Worlds for Old”, “Man and the Planets”, "Children from the Sky", "The Stones and the Stars", "With Time Comes Concord", and editor of “Starfield”, plus over 760 articles including contributions to 21 other books. Duncan has given hundreds of talks to a wide range of organisations in the UK and USA, including many astronomy and space conferences and societies, Round Tables, Rotary Clubs, Scout groups, branches of the Workers Educational Association, writers’ groups, science fiction conventions, schools and community groups and many more. He was the only amateur scientist ever to be invited to speak during the nine-year series of IBM Heathrow Conferences.