Although modern analysis forgoes interpretation as the main form of intervention, it retains the classical psychoanalytic focus on transference, countertransference, and resistance.
His most important work is a study of the psychoanalytic technique known as transference and countertransference, which was published for the first time in 1968.
Other examples are using psychoanalytic theory and concepts to understand literature, and psychohistory, or exploring the biographies of people in their social-historical context.