EU citizenship at the edges of freedom of movement EU citizenship : historical backdrop and debate The right to move and reside freely : Article 21(1) TFEU Residence and family reunification rights The right to equal treatment EU citizenship and political free movement rights EU citizenship and the Charter. This book critically analyses the case law on EU Citizenship in relation to its personal free movement rights its status on the primary law level and EU fundamental rights protection. The book exposes the legal space where EU citizenship variably loses or gains legal relevance and questions how this space can be overcome. Through a thorough analysis of the core personal free movement rights of residence family reunification equal treatment and equal political participation the book demonstrates the development of the Court of Justices case law generating a two tiered legal concept of EU citizenship. Depending on the nature of the legal claim at hand EU citizenship appears as a poor legal personhood which sharpens the edges to exercising free movement rights and pushes the individual who is in a factual cross border situation out of the scope of Union law. Contrastingly in other strands of the jurisprudence we see EU citizenship and its primary law levelled rights stretch the jurisdictional scope of Union law triggering the Charter for review of the individual case. The book enhances the understanding of the legal concept of EU citizenship in Union law and contributes to the debate on the future development of EU citizenship its relationship to the EU Charter and the strength of its legal position for the person who exercises freedom of movement