Pychiatry is about mental illnesses. The d/t kinds of mentsl illnesses and how to treat and manafe them. Psychology is more broad. It has a lot of branches like Educational Psychology, Cognitive Psycholgy, Behavioral Psychology, Clinical Psychology, Child Psychology ..and many more. It's all about the mind. Psychiatry is about the disease of the mind. Psychology studys more of the normal mind and also the abnormal to.