About the Book: This book serves as a one-semester introduction to general (point-set) topology for undergraduate and first-year graduate students. It emphasizes core concepts of topology with a concise and precise style, highlighting the interrelationships between notions frequently encountered in advanced mathematics. The text repeatedly uses twelve key topological spaces as illustrative examples to help students build understanding from familiar to new concepts. Each chapter includes exercises with selected solutions, making the book suitable both for learning and as a reference for researchers.