The quintessential New England barn-photogenic, full of character, and framed by flaming autumn foliage-is an endangered species. Of some 30,000 barns in Vermont alone, nearly a thousand a year are lost to fire, collapse, or bulldozers. Thomas Durant Visser's field guide to the barns, silos, sugar houses, granaries, tobacco barns, and potato houses of New England is an attempt to document not just their structure but their traditions and innovations before the surviving architectural evidence of this rich rural heritage is lost forever.

A recognized authority on historic barn...