Robin Heath has a science degree, and has written several books based on research into the astronomy and architecture of megalithic sites. Sun, Moon & Earth and the best selling Stonehenge are published by Wooden Books and Walker & Co, NY. A recent book, The Measure of Albion, co-written with John Michell, looks at the evidence for ancient wisdom in prehistoric Britain. Robin undertakes guided tours to megalithic and Celtic sites for Sky and Landscape and lectures widely on cultural astronomy and astrology at Oxford University and Bath Spa University College, in addition to less formal venues .