Of irreplaceable scientific value is the exchange of letters between Freud and Abraham. In their voluminous correspondence, we are able to gather the beginnings of important psychoanalytic intuitions as well as the contributions each author made to solving some knotty problems on analytic theory and clinical practice. Consistent in pace and of great human depth, this collection of letters appeals to the reader as would a novel rich in humour, which neither protagonist falls short of, especially when it comes to the obtuseness and narcissism of colleagues or rivals.