Blockchain and the Law is a foundational legal text examining the intersection of blockchain technology and traditional legal frameworks. Co-authored by Primavera De Filippi and Aaron Wright, the 2018 book provides a comprehensive analysis of how decentralized networks and smart contracts interact with established legal systems, property rights, and governance structures. The work addresses critical questions about the nature of code as law, the regulation of cryptocurrencies, the status of autonomous organizations, and the implications of distributed ledgers for contract law and intellectual property. De Filippi and Wright argue that blockchain technology forces a fundamental reckoning between code-based rules and legal frameworks, creating new possibilities for governance while raising significant regulatory challenges.