This publication is a guide for those who study the topic of leadership and want to develop a productive model of influencing others. In accordance with the central concept of the book, human behavior consists of three levels: visible activity, conscious thinking and subconscious values, beliefs, ideas and expectations from the world around us. Any influence on a person naturally affects all three levels, but in different proportions. The concept of “Level 3 Leadership” is used in executive education programs around the world. The contents of the book have been tested both in classroom conditions and in practice. The structure of the book includes mini-cases on the practical application of the concepts discussed, as well as a detailed workbook with tasks for self-assessment of your skills.