A Professor's Essays on the 45, not 46, Presidents of the United States Dr. Herbert Barry, III, Professor of Psychology and author of over forty academic articles and three books, has always had a keen interest in people and politics, and in particular the individuals that become President of the United States. In a series of fifty-four essays written between 1986 and 2023, Dr. Barry provides a unique analysis of each President. Using his training from Harvard and Yale, and his experience from over fifty years of teaching at the University of Pittsburgh, the Professor Emeritus weaves the impact of names, birth order and historical events into a perspective of each President and, through the collection, ends up telling the tale of the United States of America.