Eric Berne
Eric Berne (1910 –1970) was a Canadian-born clinical psychiatrist who developed and pioneered the theory of Transactional Analysis (TA) in the mid-twentieth century. His thinking on this topic began with Freudian theory but also theorized human relationships as a series of "transactions" between areas of the "self;" referred to as the "child," "adult," and "parent" states that correspond to Freud's theorized Id, Ego and Superego. He was the author of many influential papers regarding his theories but is best known for his book Games People Play that was published in 1958 and explains Transactional Analysis for the lay audience.