Appletons' travel guide books were published by D. Appleton & Company of New York.[1][2] The firm's series of guides to railway travel in the United States began in the 1840s. Soon after it issued additional series of handbooks for tourists in the United States, Europe, Canada and Latin America.[3]
^Catherine Cocks (2001), Doing the Town: the Rise of Urban Tourism in the United States, 1850-1915, Berkeley: University of California Press, ISBN0520227468