Nature's Thumbprint: The New Genetics of Personality is a major contribution to psychoanalysis by a father and his son. Peter Neubauer, the father, is a noted psychoanalyst who provides an integrative view of clinical matter, clinical research, and psychoanalytic thought from the tradition of ego psychology that includes the work of Anna Freud and Heinz Hartmann. Alexander Neubauer, the son, brings planning and empirical research to the book and did most of the writing. Their collaboration is a perfect example of the subject of the book, which in a word, is to acknowledge