This open access book provides a conceptual framework and a consistent series of meaningful didactic practices aimed at revitalizing critical citizenship pedagogy for democracy, beyond both methodological nationalism and cosmopolitanism. It discusses original theoretical insights into the field, highlights key structural contradictions in today's public education systems and offers operational descriptions of activities tailored to progressive developmental objectives. The book stems from ongoing research and action that has identified and is addressing the need for a more self-aware and reality-congruent citizenship education effort along the compulsory and post-compulsory school curriculum in Europe and beyond, cross-cutting any disciplinary field. This entails a paradigm shift toward what the authors call a "multiscale critical approach" to civic agency, culture and education, from the local to the global. The book contents foster an upscaled and widespread classroom experimentation in the motivating light of cooperatively developing a bottom-up contribution to a reference curriculum for citizenship education in the European Education Area. This book is intended for citizen-teachers of all disciplines and school levels, school directors, technical and vocational trainers, educational professionals including in the non-formal and informal education sectors, policy-makers and scholars who share our commitment to bring about system change in an emancipatory perspective. A perspective that is aimed at empowering what we call "emerging subjective autonomies" so as to maximise their ability to consciously and actively live their entangled condition.