Stephen PrataStephen Prata, now retired, taught astronomy, physics, and programming at the College of Marin in Kentfield, California. He received his B.S. from the California Institute of Technology and his Ph.D. from the University of California, Berkeley. His asociation with computers began with the computer modeling of star clusters. Stephen as authored or coauthored over a dozen books, including C]+ Primer Plus and Unix Primer Plus. Read More Read Less