Subjective human rights of children are reasonably fathomed cooperatively by practice, activism and research. Approaches in interdisciplinary learning and teaching in childhood and children's rights are demonstrated as possibilities for social change through acquiring competencies to think and act children's rights. This book is dedicated to Manfred Liebel and focuses on his life's work. He has, throughout his life and work, combined social scientific childhood theories and children's rights discourses with practical, topical examples of protagonism and agency of children and young people in different national and international contexts.