Josef and Renée Gicklhorn are known for their research about Freud; they have published, for instance, Did Pharmacists Listen to Sigmund Freud? (1955) and notes about Freud's research concerning the male eel. In the present book they describe Freud's academic career from its beginning in 1886 until his departure from the University in 1934. They state explicitly that they want to be regarded as 'scientists and historians' in contrast to all previous biographers of Freud. Their study lasted six years; five thousand documents