Micah LeMon had one slight problem when he started bartending nearly twenty years ago: he had no idea what he was doing. Mixology, he came to understand, is based on principles that are indispensable but not widely known. In The Imbible, LeMon shares the knowledge he has gained over two decades, so that even beginning bartenders can execute classic cocktails--and riff on those classics to create originals of their own.

A good cocktail is never a random concoction. LeMon introduces readers to the principal components of every drink--spirit, sweet, and sour or bitter--and...