Thomas A. Harris

Thomas Anthony Harris was an American psychiatrist and author best known for his 1969 self-help book "I'm OK - You're OK." He popularized transactional analysis, a psychoanalytic theory developed by Eric Berne.

Harris's book became a bestseller, selling over 15 million copies and translated into numerous languages.

His work focused on helping individuals understand their behavioral patterns and improve relationships.

Harris's approach combined elements of Freudian psychology with more accessible language and concepts, making psychological insights available to a wider audience.

His ideas influenced the self-help genre and continue to be referenced in popular psychology.