If becoming a wine snob didn’t involve years of pricey research and stuffy parties, perhaps we’d see more guys at our local bars in sweater vests. Finally, we have a fast track. The Essential Scratch and Sniff Guide to Becoming a Wine Expert ($14) by Richard Betts helps you learn the basic components of wine — the fruits, the wood, the earth — all through the childlike magic of scratch and sniff. Commit these 16 scents to memory and you’ll be infinitely wine-wiser.