Erica Lillegg (1907-1988) is considered a pioneer of German-language fantastic children's and youth literature with works such as Erika und Erik, Die Spieldose, Feuerfreund, Jakob war ein Schusterjunge and Peps. Lillegg opened doors to the supernatural, the exorbitant, the insane and the dreamlike for her young protagonists. Lillegg developed her interest in fantasy further in the artistic salon she ran with her husband, the painter Edgar Jené, in Vienna before emigrating to France. André Breton and Paul Celan were among their friends.

Claus Cornelius Fischer, born in Berlin in 1951, attended a Jesuit boarding school in Westphalia until his Abitur and then a journalism school in Munich. After graduating, he worked as a freelance journalist for "Die Welt" and "Die Zeit", among others, and as a translator of American novels before establishing himself as a screenwriter and novelist. The crime series about the Amsterdam Commissaris Bruno van Leeuwen is also internationally successful. He died on 12 December 2020 at the age of 69..

Thomas R. P. Mielke was born in 1940. While still at school, he began work on his first science fiction novel, "Unternehmen Dämmerung", which appeared in 1961 under the pseudonym Mike Parnell. In 1965 he graduated from the Hamburg Advertising Academy, writing advertising copy by day and science fiction novels by night. Together with Rolf W. Liersch, Thomas R. P. Mielke developed the concept of the alternative science fiction series Die Terranauten from 1976. His extensive portfolio includes over 100 novels and short stories.

Lisa Federle, born in Tübingen in 1961, has worked there as an emergency physician since 2001 and as a senior emergency physician since 2004. In 2015, she developed a "rolling doctor's practice" for the medical care of refugees. During the Corona pandemic, the rolling medical practice became a mobile testing station. Lisa Federle thus made the decisive contribution to the Tübingen model.

Couples therapist Dr Sharon Brehm is convinced: We are all capable of relationships. Because love is a skill and we can all learn it. In this guidebook, she tells us honestly and compassionately about the difficulties of finding a partner today and how we can overcome them. The scientifically based insight into the art of love is complemented by practice-tested tips, questions for self-reflection and coaching exercises.

Mona Nikolay is Eva Siegmund’s pseudonym. She is a full-time writer who publishes gripping adult and young adult books for Droemer, Knaur and cbt. Her crime novels and thrillers have all been recorded as audio books. Mona is a trained certified church painter with all the regalia as well as having studied law. She earned her first credits in the publishing world in the licensing department and the editorial office of a Berlin-based audio book publisher.

Dr. med. Klaus-Dieter Früchtenicht is a practising paediatrician and paediatric neurologist in Berlin, before which he worked as a senior physician at various hospitals.

Prof. Dr. Georg Seifert is a senior physician in paediatric oncology and professor of naturopathy and integrative medicine in paediatrics at the Charité in Berlin and at the University of Sao Paulo, where he researches Brazilian naturopathy and traditional medicine. Georg Seifert has three children.

Born in Düsseldorf in 1969, Frauke Scheunemann holds a doctorate in law. She completed a traineeship at NDR and then worked as a journalist and press officer.

Born in 1968, Professor Dr. Peter Vajkoczy has been Medical Director of Neurosurgery at the Charité Universitätsmedizin in Berlin since 2007 and is considered one of the most renowned neurosurgeons worldwide. Peter Vajkoczy received a scholarship from the German Academic Scholarship Foundation and studied in Munich. Before moving to Berlin, he worked for eleven years in Mannheim where he specialized in neurosurgery.