Walter Savitch received the Ph.D. degree in Mathematics from the University of California at Berkeley in 1969. Since that time he has been on the faculty at the University of California at San Diego and is currently a Professor of Computer Science and director of the Interdisciplinary Ph.D. Program in Cognitive Science. Professor Savitch’s research areas include complexity theory, formal language theory, computational linguistics, and the development of computer science education materials. In addition to writing numerous research articles and involvement in other editorial projects, he has written a number of well-known computer science textbooks, including Pascal, Ada, and C++ CS1 and CS2 textbooks.