Theodor Itten lives as a freelance psychotherapist, psychologist and author in Sankt Gallen, Switzerland. He is the author of several books including Rage: Managing an Explosive Emotion, The New Politics of Experience and the Bitter Herbst (with Ron Roberts) and Francis Huxley and the Human condition: Anthropology, Ancestry and Knowledge (with Ron Roberts).
Ruth Martin has a PhD in German literature and philosophy. She has translated a diverse range of fiction and non-fiction for UK and US publishers, including short stories by Joseph Roth and essays by Hannah Arendt.