"An Introduction to International Political Science" delves into global politics, examining how political systems function to maintain peace and foster development worldwide. We present international political science as both a science and an art, showcasing theoretical concepts and their practical applications to manage and develop nations effectively. Our main focus is on public welfare, exploring the historical background, key concepts, theories, and philosophies of politics. We discuss the emergence of politics, notable political thinkers, their ideologies, and how politics secures nations and drives economic flow. The book emphasizes economic development and financial policy formulation, highlighting how global politics work to maintain peace, development, and public welfare. We illustrate the importance of international relations and the strength of unity in overcoming challenges, whether natural calamities or conflicts. By covering all essential aspects of politics, this book provides a comprehensive overview of how political systems operate on a global scale, respecting cultural diversity and promoting economic and public welfare.