Love at first sight gets plenty of hype, leaving love at first smell all but forgotten. But not by middle-schoolers. First, a primer on love at first smell for the unitiated: Maybe you see somebody — he's decent, probably a 5 or 6 — and then he moves closer and you catch some of his smell. Bang, pheromones, game change. The animal brain has taken over and he has become a 9 or a 10, an Adonis of smells that only your nose can appreciate. Or maybe you start thinking your low-ball snap judgment was generous because he smells like he spent all day sweating through his shirt in a law office or, worse, in gym class.

Another day, another celeb shilling stinky scent. The latest to smell up magazines will be Patrick ("Can't Buy Me Love") Dempsey, who's pitching an Avon scent called "Unscripted" with the tagline, "Follow Your Passion." Randy! Daring! Due on shelves in November, the cologne's press release waxes poetic: "it has a woody green scent that expresses the freedom of the open road with fresh, aromatic cardamom and invigorating cracked black peppercorn. At the heart, a sensual mix of fig and crisp lavender enrich the experience with a warm, sophisticated texture. The drydown reveals an unusual twist -- a bold blend of exclusive leatherwood and patchouli heart wrapped in earthy vetiver and rich musk for an authentic, adventurous finish."

Uber-stylist Rachel Zoe is hard at work to become the Martha Stewart of fashion. She's already released a book, Style A to Zoe. Plus she has a clothing line in the works, her own reality show (The Rachel Zoe Project) soon to debut, and she's even developing her own perfume. Smell the Zoe. Although no release date on the scent has been set, a source said, "This scent will really reflect her personal style and hopefully finally brand her." At last, Zoe will cement her grip on the overly thin, super-tan, luxe boho stylista market.

Luca Turin and Tania Sanchez, two of the world's most well-respected sniffers, are days away from the release of their illuminating and entertaining new book, Perfumes: The Guide. Below, they sound off on Tom Ford's cocaine-and-crotch controversy, slathering George Clooney in rancid butter, and how to decode fragrance-speak. What's "fresh" actually mean? God only nose.