Phil Gersmehl is the most unique, innovative, and influential geography educator in the United States. His original and inspiring interpretation of geography and how most effectively to teach it has had a major influence in how geography is taught in this country. Through curriculum projects such as Activities and Readings in the Geography of the United States (ARGUS) and Activities and Readings in the Geography of the World (ARGWORLD), and participation in other curriculum projects such as Mission Geography, Gersmehl has created a substantial body of high quality, easy-to-use instructional materials. He has also developed an approach to teaching geography captured in this book, now in its third edition.