Research suggests that up to one in five people suffers from a personality disorder. In this 30 minute taped interview, nationally recognized expert Joseph W. Shannon, Ph.D., outlines the many different types of personality disorders (borderline, dependent, narcissistic, etc) along with their causes and treatments. Dr. Shannon also addresses questions such as: "What is personality?" "What are personality disorders?" "What causes people with personality disorders to seek treatment?" and "What can I do if someone I know or care about has a personality disorder?"