Soul of a People: The WPA Writers' Project Uncovers Depression America by David A. Taylor.
Here's my blurb: "This intimate portrait of the Writers' Project, a gem of FDR's New Deal, is a nostalgic journey through America in the Depression Era. Familiar faces dot every corner, young writers from Studs Terkel to Richard Wright, John Cheever to Ralph Ellison. It's a journey well worth taking, a key formative moment in our literary common culture, well written and nicely researched."