The paper discusses Frieda Fromm-Reichmann's theoretical contributions on the psychotherapy of psychoses and refers it to other authors' views. Today widely accepted, she stressed transference and countertransference as essential issues in the treatment of severely disturbed patients. She disagreed with authors like Federn who interpreted the concept of regression in a way that to treat schizophrenics means to treat children of different ages. Different from Federn, she advocated interpretations also of the positive transference to show the patient where he stands in life. Later on, Fromm-Reichmann opposed John Rosen and his direct analysis interpreting first the contents of the psychotic's speech. She stressed the form of the interaction and of the everyday behaviour where she saw where the patient stands in the world. The discussion shows that Fromm-Reichmann developed her theories and practice in cooperation and discussion with other psychoanalysts working with psychotic patients.