The book journeys through fundamental DeFi concepts like smart contracts and decentralized exchanges, before dissecting leading lending platforms such as Aave and Compound, and detailing their governance and risk management. By using on-chain analytics and industry reports, the book analyzes the interest-earning opportunities available, weighing potential rewards against associated risks and regulatory challenges. It progresses from foundational concepts to platform-specific analyses, concluding with a comparison of decentralized and centralized platforms.