Mohammed Hasan Alwan's profound book, 'Departure: Its Theories and Influencing Factors,' meticulously explores the multifaceted concept of departure. It delves into the various psychological, sociological, and cultural dimensions that shape human experiences of leaving, whether a physical relocation, an emotional separation, or a metaphorical transition. Alwan examines diverse theories explaining the motivations behind departure, the challenges encountered, and the profound impacts it leaves on individuals and societies. The book analyzes crucial factors influencing decisions to depart, such as economic pressures, political instability, personal aspirations, or the pursuit of new opportunities, offering invaluable insights into migration, displacement, and the universal experience of change.