The book is a modern primer on propaganda—aspects like disinformation, trolls, bots, information influence, psychological operations, information operations, and information warfare.Propaganda: From Disinformation and Influence to Operations and Information Warfare offers a contemporary model for thinking about the subject. The first two decades of the 21st century have brought qualitative and quantitative technological and societal changes, and the subject of information influence needs to be re-ordered.Now is the time. The book explains the origins of the meaning and phenomenon of propaganda—where it came from and how it has changed over the centuries.The book also covers modern methods, including artificial intelligence (AI) and advertising technologies.Legal, political, diplomatic, and military considerations ensure that the material is covered in depth. The book is recommended for security and cybersecurity professionals (both technical and non-technical), government officials, politicians, corporate executives, academics, and students of technical and social sciences.Adepts with an interest in the subject will read it with interest.