This document provides an introduction to transactional analysis, which is a technique used to better understand interpersonal relationships and behavior. It discusses key concepts in transactional analysis, including analysis of self-awareness using the Johari window model, analysis of ego states (parent, adult, child), analysis of transactions between ego states, script analysis, analysis of life positions, stroking as a way people seek recognition, and analysis of common psychological games people play. The overall purpose of transactional analysis is to improve understanding of oneself and others in interpersonal interactions.