This book provides a structured introduction to Bitcoin, cryptocurrencies, and blockchain technology, explaining how digital money works and how it differs from traditional financial systems. It covers the origins of Bitcoin, the basic principles of decentralized networks, and the role of blockchain as a distributed ledger for secure transactions. Key concepts such as mining, wallets, private keys, forks, and volatility are presented in accessible terms, with contextual explanations of both benefits and limitations. The content is designed for readers with little or no prior technical background who want to understand the foundations of cryptocurrency. The book is intended for beginners, students, and general readers interested in digital finance, emerging technologies, and alternative monetary systems. It adopts an explanatory and practical approach, combining conceptual overviews with step-by-step guidance on creating and using Bitcoin wallets, acquiring and storing Bitcoin, and understanding common investment considerations, while maintaining an informational and educational perspective throughout.