In this book, the complex topic of crypto securities is presented in a compact, understandable and practical manner. In addition to conveying the fundamentals and technical background of the crypto market, a classification in the various areas of supervisory law is made. The focus is on German law, although reference is also made to the European equivalence standards. In order to succeed in a correct classification into European financial market law, both the Liechtenstein law on tokens and VT service providers and the European proposal for a regulation on markets for crypto assets are discussed in detail and compared with the German supervisory regulations on crypto