Resident author of seven books, most recently, The Guide to Walden Pond, published by Houghton Mifflin Harcourt on March 13, 2018.
The Guide to Walden Pond: An Exploration of the History, Nature, Landscape, and Literature of one of America’s Most Iconic Places (Houghton Mifflin Harcourt, 2018)
The Boatman: Henry David Thoreau’s River Years (Harvard University Press, 2017)
Walden’s Shore: Henry David Thoreau and Nineteenth Century Science (Harvard University Press, 2014)
Beyond Walden: The Hidden History of America’s Kettle Lakes and Ponds (Bloomsbury, 2009)
Exploring Stone Walls: A Field Guide to New England’s Stone Walls (Walker/Bloomsbury, 2005)
Stone by Stone: The Magnificent History in New England’s Stone Walls (Walker/Bloomsbury, 2003).
Stone Wall Secrets (Tilbury House, 1998)
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