Shellfish Cookbook offers a complete course on the world’s edible shellfish, from baby shrimp to Alaska king crab and lesser-known species such as bulldozers and lobsterettes. Steamed blue crabs, stir-fried shrimp, crawfish jambalaya and hundreds more are served up with a good dose of A.D.’s wit and practical advice on the varieties that make good eating, where they can be found, and how best to preserve their flavor.