This document provides an overview of Transactional Analysis and the Johari Window model. It discusses: - Eric Berne's development of Transactional Analysis and the three ego states - Parent, Adult, and Child - The meaning of transactions and types of transactions between people (complementary, non-complementary, ulterior) - The four quadrants of the Johari Window model - Open Self, Hidden Self, Blind Self, and Undiscovered Self - and how they relate to interpersonal dynamics and potential for conflict - Berne's concept of "life positions" describing basic assumptions people develop about their own and others' self-worth