Published in 1928, the book “Propaganda” strengthened Bernays’s reputation as a pioneer in the field of public communications and is still considered a key work in this area. Using data from sociological research and supporting it with real-world examples, Bernays reveals the mechanisms for managing mass behavior. He explains why propaganda plays an important role in any society, what is necessary for it to be effective, how public opinions and values are formed, how new ideas arise, and how an active minority can influence broad layers of society.