This document provides an overview of Transactional Analysis, which was founded by Eric Berne in the late 1950s. It discusses the three ego states of Parent, Adult, and Child and how transactions occur between these states. The document also describes complementary, crossed, and ulterior transactions. It then outlines the modern seven-element model of Transactional Analysis and discusses effective and ineffective modes of communication and behavior. In conclusion, it states that Transactional Analysis is an effective method for understanding and managing relationships and behaviors.