This video shows you how to peel and devein shrimp quickly and easily, with just a kitchen paring knife.
You can often find raw shrimp that have already been deviened and/or peeled. This is fine, as long as the shrimp is still raw. Pre-cooked shrimp that have been frozen, or sitting in a grocery store cooler, are sad, flavorless, rubbery things that are unworthy of your kitchen.
– Chef Perry