Remember when the boys of Sterling Cooper were working on the Maidenform account, and they pointed to each woman in the office and declared her a "Jackie Kennedy" or a "Marilyn Monroe"? You didn't have to be Joan Holloway, head of the secretarial pool, to appreciate their conclusion: "Joan is a Marilyn. No! Marilyn is a Joan."Joan, like any bombshell who knows her stuff, lets her curves do the talkin'. Therefore, her office look is simple: a figure-hugging dress, a little red lipstick, and jewelry that draws attention to her assets. Click through our slideshow to get the jaw-dropping look that has all the men on "Mad Men" wrapped around Joan's little finger.