Ginger root by John Spottiswood.

With its sweet yet pungent flavor, ginger has become a mainstay of many of the world's cuisines. European cooks like to use dried, ground ginger to flavor gingerbread and other baked goods. Asian and Indian cooks prefer their ginger fresh, and they use it in spicy sauces and stir-fries. Ginger not only tastes good, it's also believed to have medicinal properties, and people sometimes use it to soothe their upset stomachs and boost their energy. Ground ginger isn't a good substitute for fresh, but dried whole ginger will work in a pinch, as will the minced or puréed ginger that's sold in jars.