This book provides a commentary on the Markets in Crypto-Assets Regulation (MiCAR), a game-changing EU regulation for crypto-assets and crypto-asset services. Directly applicable in all EU Member States, MiCAR serves as a benchmark for future regulation in other jurisdictions, influencing rulemaking and crypto industry around the world. In this book, leading experts in the fields of financial law, regulation, and technology examine the goals, rules and operation of MiCAR. The book explores its provisions in the broader context of current market practices, technological developments, existing financial law instruments (eg MiFID II, Prospectus Regulation, Crowdfunding Regulation and Market Abuse Regulation), court cases (eg the bankruptcies of FTX and Celsius), regulatory initiatives in the USA and the UK, as well as soft law instruments. The book is designed for anyone dealing with crypto-assets or considering entering the crypto space. This includes representatives from legal and business communities, both incumbent (banks, investment firms, investment funds) and new market players (crypto exchanges, wallet service providers, issuers of stablecoins), supervisory authorities, students and academics. The reader will gain a deep understanding of the scope and structure of MiCAR, key terms used in it, its rationale, and the main rules for issuers of crypto-assets, crypto-asset service providers, and crypto-asset services.