Margaret Bourke-White was only 30 when she took the cover photograph for the first issue of Life magazine, in 1936, but she was already well known as an industrial photographer whose images of steel mills, the Chrysler Building, airliners, and the Soviet Union helped define how Americans saw those things. A traveling museum exhibit and companion book reveal hundreds of those pictures in sumptuous prints vastly finer than their first appearances in newspapers and magazines. The show and the book are both titled Margaret Bourke-White: The Photography of Design, 1927-1936 . The show opened at the Phillips Collection in Washington, D.C., last winter and will be at the Ringling Museum of Art in Sarasota, Florida, from October 25 to January 4; the Mint Museum of Art in Charlotte, North Carolina, from February 14 to May 2; and the Fort Wayne Museum of Art in Indiana and the Portland Museum of Art in Maine in late 2004 and 2005. The book, with a text by Stephen Bennett Williams, of the Phillips Collection, is published by Rizzoli ($45).