0In recent decades, "personal development" has become a major emphasis in the business world. In a fast, changing and complex global world, there is a need to approach success from a holistic perspective. More and more, the traditional top-down leadership model that focuses on one way to solve problems seems to be inefficient in leading others. Collaborating with others, examining together, and exploring issues to bring adaptive solutions is fundamentally essential for success. In this context, personal development and leadership appear inseparable like the mind and the body, the visible and the invisible part of an iceberg. In fact, personal development begins with the ability to explore one's own strengths and limits, to increase self-awareness and improve self-management. These elements are key to building interpersonal skills, achieving important life goals and guiding others to achieve their full potential. This book is an invitation to a journey that values personal maturity, which is the key to personal and professional success.