This book presents, for the first time, a comprehensive overview of the central approaches and models for coaching and consulting processes. Inspired and grounded in humanistic psychology, a variety of methods have emerged in therapy and consulting processes. Significant communication scientists, psychologists, and therapists such as Carl Rogers, Paul Watzlawick, Virginia Satir, Friedemann Schulz von Thun, Marshall B. Rosenberg, Steve de Shazer, Ruth Cohn, Jon Kabat-Zinn, and others developed key approaches and models that have proven effective in professional practice. Carefully researched, this book relieves the reader of the task of navigating through the multitude of significant literature. It provides well-founded insights into the respective approaches and models—concise, understandable, and visually presented. Additionally, practical exercises are included for each topic.