This introduction presents an overview of key concepts discussed in the sub sequence chapters of this book. The book introduces the readers to the current state of knowledge in the area of social influence techniques. It is an introduction to the subject of social influence and to the content of the manuscript. It attempts to demonstrate the complex role words play in processes of social influence. It describes the results of various experiments by a host of social psychologists conducting research around the world. It focuses on the reality of human behaviour, opinions or verbal declarations of particular behaviours. It describes research concerning real social behaviours. The full cycle is a construction under which a social influence technique emerges in social life, and after it is discovered, investigated and described by scientists, it winds up back in that real life. It also focuses almost exclusively on techniques designed to induce people to behave in a particular manner.