Dallas’s first all-glass curtain-wall building received a Postmodern “slipcover,” designed by Richard Keating of SOM’s Houston office, to improve the market position of its office space. The sleek glass curtain wall is patterned with a large grid of gray glass over a field of blue glass. Another pattern, large X s running diagonally across the facades in dark blue glass, reflects the structural bracing. On the roof, small corner spires and a central tower are brightly illuminated at night, giving the refreshed building an identity on the skyline. A portico of angular stone columns supporting a steel truss “frieze” and a glass pyramid entrance hall add engagement with the sidewalk. The building is the headquarters of retail giant Neiman Marcus Group, founded in Dallas in 1907.