This chapter discusses three broad approaches to psychotherapy, which are related to one another in some ways and quite divergent in others. These approaches or domains have a historical appeal and have critically shaped the development of psychological therapies. A great deal of theorizing and research has been conducted on these approaches, and each has been acknowledged as a significant and original orientation for clinical psychologists. Their importance has resisted attempts to see them as a time-limited fashion therapy, and they continue to be the central focuses for psychological treatment. These three areas are psychoanalysis and psychoanalytic psychotherapies, client-centered psychotherapy, and systems therapies.