Language is a powerful tool that distinguishes humans from other species. It is not merely a means of communication but also a system that reflects culture, society, and cognitive development. As a subject of academic inquiry, linguistics dives deeply into understanding how language works, how it evolves, and how it impacts our lives. This book, A Guide to Linguistics: History, Structure, and Basic Concepts, is intended to offer readers a comprehensive exploration of language, focusing on its structure, function, historical context, and the fundamental theories that shape modern linguistics.