This issue of "Information Technology Quarterly" is devoted to the theme of "Artificial Intelligence." It contains two major articles: (1) Artificial Intelligence and Law" (D. Peter O'Neill and George D. Wood); (2) "Artificial Intelligence: A Long and Winding Road" (John J. Simon, Jr.). In addition, it contains two sidebars: (1) "Calculating and Searching"; (2) "Cognitive Science and Artificial Intelligence (Donald S. Bradshaw). The issue is designed to provide a historical perspective as well as to describe some specific applications of artificial intelligence and expert systems. Issues addressed in the first article include a brief history of law and artificial intelligence; efforts to apply artificial intelligence to the field of law; artificial intelligence and legal reasoning; research into the cognitive processes of legal reasoning; Project PERICLES, a joint research endeavor between the Harvard Law School and Digital Equipment Corporation to study the uses of computer technology in the legal domain of landlord tenant law; and a description of cognition and law research. An expert system developed at Harvard (NOMOS--from the Greek concept of law) is described, including implementation methods, modules, and system integration. The second article provides a history of the mechanization of human thought, citing the work of Plato, Descartes, Pascal, Charles Babbage, H. P. Babbage, Alan Turing, Claude Shannon, and others who laid the ground work for today's principles of artificial intelligence. More recent research in the field by American scientists is also discussed, e.g., Alan Newell, Herbert Simon, J. C. Shaw, John McCarthy, Marvin Minsky, Roger Schank, and Robert Wilensky. Several expert systems are also described. Each article includes its own list of references. (JB)