Amazon.com description: Product Description: These audio recordings allow you to assimilate all the essentials of the course at your convenience — listen while working, commuting, exercising, or just relaxing. The information and ideas you struggled with previously are now brought to life simply and succinctly. The tape provides "Real Time" and "Tape Counter" Quick Reference Indexing; two different indexing methods that allow you to quickly locate every topic in the entire recording. Exam tips are also provided to maximize your performance.