Authors: Jason Kosmas and Dushan Zaric
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Why It's Essential: You'll notice a marked improvement in drink quality after applying these old-school techniques.

Classic cocktails have undergone a massive revival, making this book a necessary resource for aspiring mixologists. Zaric and Kosmas' Employees Only cocktail bar in the West Village has an established reputation for providing an authentic speakeasy-feel for their clientele, and their book works to transport some of the recipes of that era to the present, re-imagining drinks with a modern flair. If you're truly serious about mixology, then you'll appreciate the artistry at work here.