Keen J. Babbage has twenty-five years of experience as a teacher and administrator in middle school, high school, college, and graduate school. He is the author of author of numerous books including 911: The School Administrator's Guide to Crisis Management (1996), Extreme Teaching (2002), Results-Driven Teaching: Teach So Well That Every Student Learns (2006), What Only Teachers Know About Education (2008), and Extreme Economics, Second Edition: .