"Principles of Economics" by N. Gregory Mankiw is a widely used introductory textbook that covers fundamental concepts of economics. It is structured around ten key principles that guide economic thinking, including how people make decisions, how they interact in markets, and how the economy as a whole functions. The book emphasizes real-world applications of economic theory, making it accessible to students and readers with varying levels of prior knowledge. Mankiw combines clear explanations with engaging examples, illustrations, and case studies to illustrate how economic principles apply to everyday life and public policy. The text is designed to help readers develop analytical skills to understand economic issues and make informed decisions. It is commonly adopted in university courses worldwide, reflecting its importance in the field of economic education.