The text is: Cawsey, Alison. "The essence of artificial
intelligence", Prentice-Hall Europe, 1998, ISBN 0-13-571779-5.
It's US$20 on Amazon. I have also ordered it for BL.
He will want you to get familiar with the CLIPS expert system
tool, which you can download...
The CLIPS site is:
http://www.ghg.net/clips/CLIPS.html
The author's web site is:
http://www.cee.hw.ac.uk/~alison/essence.html
Enjoy! /Bonnie