The dealer brochures are different than the Truck Sales Data Books. These are 2-3 inch, three-ring binders with information on light-duty, medium-duty & heavy-duty for each year issued. I rarely see them and when I do, they usually fetch around $100.00. They have midnight blue or black, hard cover with TRUCK SALES DATA BOOK & the Chevrolet bowtie, embossed on the cover & the backbone of the binder.