Unless you're serving a shrimp boil or grilling shrimp for a laid-back get-together, peeling and cleaning shrimp before cooking them makes for a more tasty and attractive presentation.
1. To peel raw shrimp, start underneath, where their legs are attached. If you like, leave the last tail segment on for looks.
2. Devein by making a shallow slit down the middle of the back to expose the black intestine. (To butterfly, make the slit deeper.)
3. Lift out the black vein with the point of a paring knife and wipe it off on a paper towel. You can also rinse it out under cold running water.