This comprehensive programmer's reference guide is designed for quick access and easy interpretation. A high-level resource, it provides concise, detailed information for designing, organizing, troubleshooting, and debugging. Emphasis is on Turbo Prolog, but the scope is broad enough to include other major Prolog releases, i.e., DEC Prolog and MicroProlog. Covers the construction of facts, objects, and rules within Prolog syntax and Turbo Prolog construction. Goes on to discuss organization of program listings and techniques for controlling execution; explains the predefined predicates and their use; explains file creation and access, graphics, and sound. Includes a set of appendixes including an ASCII code reference chart, a quick guide to built-in predicates and goals, a Prolog-to-Turbo Prolog conversion chart, graphics and sound values in tabular form, and a Turbo Prolog language summary.