[Ashley Olsen, Mary-Kate Olsen. Photo by DAVID X PRUTTING for PMc]

Last night, Barney's hosted the official book release party for Mary-Kate and Ashely Olsen's new book Influence and the dynamic duo showed up looking better (and more similar), than ever. The book introduces readers to respected artists, seasoned designers and others who have influenced Mary-Kate Olsen and Ashley Olsen over the past decade. These, according to Ashley, are

"The most interesting, challenging, creative people we know — the ones who helped pave the way for us and our generation." Adds Mary-Kate: "Ashley and I interviewed the people who have inspired us, with the hope that they will inspire and teach others."

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