In this fascinating book, a leading historian takes us on a different kind of journey up the Hudson. George J. Lankevich has chosen 64 postcards-most from the first half of the 20th century-to chronicle the changing landscape of the Hudson Valley. North from the gritty riverfront factories of Yonkers, past the towering bluffs of the Palisades, we travel upstream, stopping to sample the remarkable variety of the river's changing course.Here's a rich portfolio of scenes that convey the extraordinary vitality of Hudson Valley history-from stately mansions at Hyde Park and Pocantico Hills to the small river ports that sent bricks and grain down to New York City.