JOHN WILKES began restoration work on Rudolf Steiner’s and Edith Maryon’s sculptural and architectural legacy in 1965. A large number of wax and plasticine models had been deteriorating over the decades and were in urgent need of repair. Included was the nine metre high, preparatory plasticine model required for building the wooden sculpture in 1917. Casts were prepared of all models to guarantee their availability as creative study material into the future. Influenced by an extended study of Projective Geometry with George Adams, Wilkes later became involved in research on the effect of rhythmical movement on water quality, which led to the Flowform Method. JUDITH VON HALLE, born in Berlin in 1972, attended school in Germany and the USA and subsequently studied architecture. She first encountered anthroposophy in 1997, and began working as a member of staff at Rudolf Steiner House in Berlin, where she also lectured. In addition she had her own architectural practice. She published her first book in 2005, and now works principally as a lecturer and author, having over 30 books in print. She lives in Berlin with her husband.