This introductory textbook uniquely combines a beginning course in the logic programming language Prolog with a full PC implementation of the language on a free disk. As such it combines the demands made on a coursebook with the hands-on facilities required for self-study.; The book has a practical orientation, with step-by-step development of the key concepts contained in the language. It encourages students to implement all the examples provided as an essential part of the learning process. In addition, the book introduces foundational concepts of artificial intelligence AI alongside its development of the powerful features of Prolog.; The book is ideally suited to an undergraduate course in AI or logic programming. providing a free full version of the language, it also offers an inexpensive package for off-the-shelf self-study for professionals, as well as providing each student with a personal copy of Prolog for home study. It should be valuable for both undergraduate and professionals.