A well-written easy read about a serious issue. This is an up-to-date description of the "seafood" industry - how world demand for fish food causes overfishing, and how this and fish farming damage the environment. Fish farming surprisingly, further reduces the numbers of wild fish. I learned which fish are not overfished (not many). Grescoe predicts that by the late 40s, seafood populations will be reduced to jellyfish (edible) and slime if methods of farming are not changed, and if overfishing continues. He includes interviews with grassroots fishers, fish farmers, and chefs from around the globe. This book answered all the questions I had regarding the seafood industry.