Transactional analysis is a model of communication that examines interactions between individuals. It analyzes personality structure, transactions, games, and scripts. Personality is composed of the parent, adult, and child ego states. Transactions can be complementary, crossed, or ulterior. Complementary transactions occur when responses match expected ego states. Crossed transactions mismatch ego states, disrupting communication. Ulterior transactions conceal messages from another ego state. Game analysis examines veiled motivations behind behaviors. Script analysis considers specific life dramas people follow based on childhood learning.