A vintage tourist brochure
featuring images taken by several photographers states that Muñoz was
Official Photographer for the National Tourist Bureau. Clark's Tours, a
company still in the travel business in Guatemala, published a series of 60 postcards with
photographs credited to J. Muñoz. The cards are called "linens"
because they are printed on textured paper stock with a mellow, canvas-like
appearance. The cards were made by the Curt Teich Postcard Company, near Chicago,
Illinois, in April 1940. Some 44 additional Guatemalan views were printed by Curt
Teich and published by La Helvetia in 1948, but the photographer is not credited.
Many of the postcard images
were published in a book entitled Guatemala Ancient and Modern, by Joaquín Muñoz
and Anna Bell Ward (New York: The Pyramid Press, 1940.) Muñoz dedicated the book to
the memory of Alfred S. Clark, founder of Clark's Tours. Muñoz photos illustrate
another title, Guatemala: From Where the Rainbow Takes Its Colors (Guatemala:
Tipografía Nacionál de Guatemala, 1940.)