Mention Woody Guthrie, and people who know the name are likely to think of the "Okie Bard," dust storms behind him, riding a boxcar or walking a red-dirt road, a battered guitar strapped to his back. But unlock Guthrie from the confines of rural folk and Hollywood mythology, as Will Kaufman does here, and you'll find an abstract painter and sculptor who wrote about atomic energy and Ingrid Bergman and developed advanced theories of dialectical...