This document discusses personality in the context of agricultural extension. It defines personality as characteristic ways of responding to individuals and situations. It describes the major types of personalities as introvert, extrovert, and ambivert. The key factors that influence personality development are heredity, family background, social interactions, culture, environment, and situations. Understanding farmers' personalities is important for extension workers to effectively plan educational programs and teaching methods, select suitable farmers for certain purposes, and properly advise farmers for desirable changes.