When even Ke$ha thinks that today's starlets dress like hussies, it's clear that a cultural shift is just over the horizon. Fortunately, Derek Blasberg has written a new book that we know will prove indispensable next time we ask ourselves "How short is too short? It's packed with guides, charts, and checklists for how to be a lady—not a tramp. So let Derek help you help yourself. After all, "You might not have been born a lady," he writes, "but there's no reason you can't learn to be one." Classy will be on sale April 6. For more information, go to DerekBlasberg.com. Meanwhile, click to enlarge our scans from inside the guide.