Now cognitive behavior therapists are daring to approach psychosis again, using the familiar tools of "collaborative empiricism" (p. 9), such as Socratic questioning and behavioral testing. The therapist becomes the patient’s ally in working on a graded hierarchy of tasks, beginning with the least firmly held beliefs. Hallucinations and delusions are explored in depth, and both their negative and positive effects on the patient are noted. A "verbal challenge" raises doubt about the evidence for delusional beliefs and offers alternative explanations. "Behavioral experiments"/"planned reality testing" evaluate evidence. These interventions, targeting both the form and content of delusional cognitions, are not magic. They work adjunctively with pharmacotherapy, affect positive but not negative symptoms, and their efficacy lacks definitive proof in replicated, randomized controlled trials. Evidence for utility is mounting, however, and it is impressive that cognitive behavior therapy psychotherapists accept the challenge of such difficult symptoms.