The product is a lot of five classroom manuals for automotive technicians, published by Delmar Cengage Learning in 2007. The manuals cover subjects related to technology, engineering, education, and the automotive industry. They are authored by Boyce Dwiggins, Clifton Owens, Delmar, and Lane Eichorn, and are presented in a trade paperback format with a total of 320 pages. The manuals are designed for teaching methods and materials in the arts and humanities, with a focus on technical and manufacturing industries and trades. Automotive heating and air, brake systems, engine repair and rebuilding, suspension and steering systems and automatic transmissions and transaxels.