I really wish the cover had been more explicit about the contents of this book. I thought it was a business book, extolling the virtues of "just-on-time" delivery and push-pull manufacturing and distribution. E.g., how to avoid oversize shipments and warehouse overhead. But it was a about boats. Large boats. Not what I expected. But I had to give it at least two stars, because the section on Great Lakes pig iron freighters was captivating.