I needed this book because I go to the fish market often and have no ideawhat I am looking at beyond the usual fish. I recommend this because there are many names for the same fish. The markets make up names for fish thatare common names, and have nothing to do with the species of type of fish. The result is that you can buy something and not realize what it is, and pay more than you need to pay. It is very helpful to know how a flat fish, for example, is best cooked, and know what they are called. You would never guess it in the market. Learning this has made me much more confident and a much smarter consumer. You also learn about the fat content, and flavors best used with each type of fish. I recommend it highly.