New York Times bestselling author Michael Ruhlman applies the principles of his innovative book Ratio—about the relationships of ingredients to each other—in this delightful back-to-basics cocktail book, sharing the simple recipes and fundamental techniques that make for delicious and satisfying libations.

Did you know that a Gimlet, a Daiquiri, and a Bee’s Knees are the same cocktail? As are a Cosmopolitan, a Margarita, and a Sidecar. When hosting a party wouldn’t you enjoy saying to your guests, “Would you care for a Boulevardier, perhaps, or a Negroni?” These, too, are the same cocktail, substituting one ingredient for another. Or if you’d like to be able to shake up a batch of whiskey sours for a party of eight in fewer than two minutes, then read on.