Essential reading for anyone who seeks to prepare active citizens for the twenty-first century, this long-awaited book considers Philosophical Inquiry, an empowering teaching method that can lead to significant improvements in confidence and articulacy, and produce positive effects in other school activities and in interactions in the wider world. Readers are guided through the creation of a Community of Philosophical Inquiry (CoPI) in the kindergarten, the classrooms of primary and secondary schools, the community centre and beyond, with practical ideas to make CoPI work. With examples ranging from five year old children to underachieving teenagers, and even senior citizens, the book shows how participation in a CoPI develops: the skills of reasoning, critical and creative thinking concept formation and judgment the virtues of intellectual honesty and bravery. Including chapters on the theory and development of Philosophical Inquiry, the creation of a community, and using CoPI with groups of different ages, this book forms essential reading for teachers, professionals and community workers.