Light wear on the edges. Shipped the next business day! We own a small family book store and sell our extra books and media that have been on our shelfs for too long. Additional Details ------------------------------ Product description: Using analogies, graphs, formulas and illustrations, the author overviews key topics in the refining industry for professionals in finance and marketing. The third edition reflects changes in petroleum processing and the impact of environmental regulation. Annotation c. Book News, Inc., Portland, OR