Photo of Hopi platter by vlasta2 used under a Creative Commons license.
Edward T. Hall, West of the Thirties: Discoveries among the Navajo and Hopi (Anchor Books, 1995).
Hall arrived on the Navajo and Hopi Reservations at the age of 19 in 1933 to work for the Indian Emergency Conservation Work program, a New Deal program of road repair and other civil engineering. He stayed for four years, during which time he fell in with trader Lorenzo Hubbell, who was an intermediary between the Navajos, Hopis, Anglos, and Hispanics, and to whom the book is dedicated. Hall, who was to become a noted anthropolist, was engaged by the Navajo and Hopi cultures, which had much less contact with the outside world in those days. His account of those four years is readable and engaging.
The book doesn’t have much presence on the interwebs. Here is a 2006 interview with Hall, much more theoretical than the book. Here is a review by Emilie De Brigard in Visual Anthropology Review. And Douglas A. Sylva wrote a short, cranky review in The New York Times.