The specialized book "Direct Indirect Enforcement" offers a comprehensive analysis of the application of national law by Union authorities. It highlights the legal frameworks and challenges arising from the interaction between national and European law. Written by Ansgar Baumgarten, the work is aimed at legal professionals, students, and experts who engage with the complex aspects of international and public law. Its clear structure and well-founded arguments make it a valuable reference work for anyone dealing with the topic of indirect enforcement in a legal context. With 304 pages, the book provides a detailed examination of the relevant legal issues and is written in German.