**Influenza: The Psychology of Influence** - a book written by the famous psychologist Robert Cialdini, is a famous study of influence and beliefs. In this book, the author explores the mechanisms by which people are influenced, as well as how these mechanisms can be used for one's own purposes. Cialdini explores topics such as social trust, authority and influence, principles of reciprocity, gender, and more. This book will help you better understand how the psychology of influence works and help you become more knowledgeable about these issues.