This book is dedicated to wonder and wondering, mundane phenomena that, despite their great value for education and other spheres of human experience, often go unnoticed both inside and outside the classroom. Praised as the origin of philosophy in ancient times, the concern for understanding and educating wonder has been present throughout history. It is not only the case that this basic psychological process opens our everyday experience to what is possible, what lies beyond the here-and-now, but does so with extraordinary consequences. Wonder transforms our experience of the world from early childhood onwards. It is ever-present in children's play and games, it offers constant opportunities for learning and it fuels our creativity. And yet, we know little about this phenomenon, its biological, psychological, social and cultural underpinning, and even less about how to foster it and harness its benefits in education.