Expert System Books Expert System - Principles and Programming Joseph Girratano and Gary Riley PWS-KENT Publishing Company, Boston, 1989 0-87835-335-6 Expert Systems - Design and Development John Durkin Macmillan Publishing, New York, 1994 0-02-330970-9 Artificial Intelligence - A Modern Approach Stuart Russell and Peter Norvig Prentice Hall, New Jersy, 1995 0-13-103805-2 we specialize in Intelligent Business Rule Management Systems (iBRMS) - the same thing that used to be called rulebased systems by the AI companies.