The book The Digital Markets Act (DMA) brings many new rules for large platform operators. Companies that use central platform services of "gatekeepers" as well as private endusers of platforms are affected. The article-by-article commentary explains,who, as "digital gatekeeper", is the direct addressee of the prohibited conduct,how the obligations must be implemented,what rights the commercial users of the platforms are entitled to, andhow to proceed in the event of a violation against gatekeepers. The target group In-house counsels, companies, lawyers, supervisory authorities, business and consumer associations, insurance companies, research institutions, European institutions, non-governmental organisations.weiterlesen