Use Delmar's comprehensive driver training products together to help ensure that the most qualified drivers are on the road. The Tractor-Trailer Truck Driver Training Manual, 4th Edition, and Trucking: Tractor-Trailer Driver Computer Based Training (CBT) bundle is the ideal driver training program at an affordable price. The manual features four-color photographs and illustrations as well as technical content that stresses the importance of developing the skills, traits, and behaviors that characterize professionals. The CBT's animations and interactivity promote a high level of retention. Delmar is the only official education partner of the Professional Truck Driver Institute (PTDI).