Janusz Korczak's pedagogy is simple: Children are human beings! They have rights! However, the memorability of such statements can obscure the radicality and depth of his educational thoughts. Korczak is both a demanding theorist and an inspiring practitioner. This study book presents the breadth of Korczak's extensive oeuvre (writer, pediatrician, social politician, theorist, and practitioner of pedagogy) in a clear manner and encourages readers to relate the richness of his ideas to today's educational situation through exercises.