APNA has partnered with several publishing companies in order to offer its members discounts on select publications. Cambridge University Press 20% off Cambridge University Press' mental health, psychiatry, and clinical psychology books Exclusive only to members of the American Psychiatric Nurses Association, take advantage of a 20% discount off the list prices of books in Cambridge University Press' mental health, psychiatry, and clinical psychology books.   to log in and take advantage of your APNA member discount.