John Wilkes Booth was the son of prominent, wealthy actors. He, too, became an actor and was so popular, he was one of the first to have his clothes ripped off by fans. Hulton Archive/Getty hide caption
Psychology is the systematic investigation of the human mind, including behavior and cognition. It thus encompasses both normal and abnormal behavior. On the other hand, psychiatry is a branch of medicine dealing with mental illness.
The theoretical difference between a clinical psychologist and a counseling psychologist is that. the clinical psychologist specializes in the treatment of mental disorders; the counseling psychologist specializes in the treatment of everyday adjustment problems.