Jim Dann was born in 1940 and graduated in physics from Carnegie Tech in Pittsburgh, Pa. A graduate student in history at UCLA in 1964, he volunteered for the Mississippi Summer Project organized by the Student Nonviolent Coordinating Committee. At the SNCC’s request he stayed on and was hired as a Field Secretary for the following year. After returning to UCLA, he was active in the anti-Vietnam War movement. He authored “US Hegemony Over the Three Worlds,” in How the World Works, A critical Introduction to International Relations, edited by Gary Olson (1984, Scott, Foresman and Company). He then taught high school physics for 20 years. With his son he authored The People’s Physics Book, a textbook for advanced high school physics, freely available on-line, and used in a number of states and some countries outside of the US. Jim Dann lives in Vacaville, CA, and works part-time as an Energy Conservation Consultant to a Sacramento school district. Jim worked diligently on this book until June 14 without letting on that his health was anything but perfect.The first galleys were completed on June 16 when when we learned that Jim had passed away that day. He died of leukemia. Getting this book out was an absolute priority