Fred Hageneder is a leading expert in ethnobotany, specializing in the cultural and spiritual history of trees. A founding member of the Ancient Yew Group in Britain and a member of SANASI, a scientific group that helps protect indigenous sacred sites, he is also a member of the Ecocentric Alliance. The author of 2 books and a musician who composes music for various tree species, he lives near the Black Mountains in Wales. Anne Heng is a painter and illustrator, who specializes in painting on silk, which enables her to convey the quiet beauty of nature. She lives near the Taunus Mountains in Germany.