2X4 Founded in 1993 by Michael Rock, Susan Sellers and Georgianna Stout, 2×4 works in print, film/video, Web and environment design for clients ranging from Vitra, Knoll Textiles, Prada and Target to the Guggenheim Las Vegas, the Studio Museum in Harlem, N.Y., and the Winspear Opera House in Dallas. The New York-based design firm develops...