ASTRID PROKOFIEFF-SEUFERT, born in 1956 in Bonn, Germany, took an interest in Rudolf Steiner’s educational ideas in her youth and studied piano at the Academy of Music in Basel and eurythmy at the Goetheanum, Switzerland. She met her husband in 1981 and supported him in his work as an author and lecturer for some 33 years. Since 2014, together with Hans Hasler, she founded the Sergej O. Prokofieff Archiv, managing and promoting the worldwide publication of her late husband’s works. HANS HASLER, born in 1942 in the Grison Swiss Alps, worked in special education in Switzerland and in a Camphill home in Finland. Later he worked for many years at the Goetheanum in various positions, including as leader of the building administration. He is co-director of the Sergej O. Prokofieff Archiv, and has lived in Finland since his retirement