This document discusses the key concepts of public opinion, including that it represents the collective political beliefs and attitudes of groups within the public on important issues facing government. It also addresses how public opinion can be influenced by factors like salience, stability, direction, and intensity of feeling on issues, as well as political socialization through education, peer groups, religious institutions, media coverage, and generational experiences. The document concludes by noting some ways public opinion polls can be biased, such as through ambiguous, leading, and loaded word choice in questions.