Jeffrey Bennett holds a B.A. in Biophysics from the University of California, San Diego, and an M.S. and Ph.D. in Astrophysics from the University of Colorado, Boulder. His extensive experience in research and education includes teaching at every level from preschool through graduate school, proposing and helping to develop the Voyage Scale Model Solar System on the National Mall in Washington, D.C., and serving two years as a Visiting Senior Scientist at NASA Headquarters. He is the lead author of best-selling college textbooks in astronomy, astrobiology, mathematics, and statistics, and of several books for the general public including Math for Life (Big Kid Science, 2014), and the forthcoming What is Relativity? (Columbia University Press, 2014). His personal web site is www.jeffreybennett.com.