Does social science matter? Yes. Why does social science matter? It provides humans with knowledge, in form of research and theory, that allows us to understand our surroundings and how the social realm works. In addition to the theoretical and empirical understanding of the social realm, social science allows us to anticipate and shape aspects of future social developments and outcomes – e.g., demography and human security and social unrests; or actions and potential reactions between and among individuals, state-actors and non-state actors and their implication on the social realm. Thus, social science matters due to its canon of knowledge which empowers humans with tools to not just understand the social realm but also mediate in social dynamics and suggest policy reforms. Humans keen on the social science develop practical skills, distinctly valued in all forms of social dynamics. For instance, individuals can understand their social surroundings, assess decisions they attempt to make and such which political leadership conducts on their behalf. Without our knowledge in social science our understanding of the social realm is less complete and our objectivity is less robust. This book provides a platform for readers, scholars, and for practitioners to learn about present trends and debates in Social Sciences, und conduct creative and fresh (interdisciplinary) research; to discuss common encounters, and brainstorm innovative solutions. This book includes Twelve chapters which are divided into four sections related to the disciplines of International Relations, Politics, History, and Law. The chapters are written with different depth and quality; they demonstrate the validity which the social science can stimulate our understanding and anticipation of our world.