Purchased this book for instruction in entry level Transportation Course, to which it seems basically well suited. The book however suffers from chronic poor editing of the charts and graphs, poor layout of some charts, such as the motor carrier unit cost chart, and the chart detailing the quantities of foodstuffs consumed in New York. I would let this go if it occurs once, but lack of quality control in these areas comes through more than that. A good entry level text with good scope. I will have to fill in the gaps to assure understanding.