Gourmands and health-conscious consumers alike have fallen for fish; last year per capita consumption in the United States hit an all-time high. Packed with nutrients and naturally low in fat, fish is the last animal we can still eat in good conscience. Or can we?

In this vivid, eye-opening book first published in the UK to wide acclaim and now extensively revised for an American audience environmental journalist Charles Clover argues that our passion for fish is unsustainable. Seventy-five percent of the world s fish stocks are now fully exploited or overfished; the most popular...