New York: David McKay Co., (1958.). Hardcover first edition - Illustrated by 32 pages of photographs. The story of the author's dangerous journey in South America with his five year old daughter and wife. 166 pp.

New York: Harcourt Brace & Company, (1990) dj. Hardcover - An award-winning children's book, illustrated by the author. "One day, a man exhausts himself trying to chop down a giant kapok tree. While he sleeps, the forest's residents, including a child from the Yanomamo tribe, whisper in his ear about the importance of trees and how 'all living things depend on one another' . . . and it works. Cherry's colored pencil and watercolor drawings of all the 'wondrous and rare animals' evoke the lush rain forests, as well as stunning world maps bordered by tree porcupines, emerald tree boas, and dozens more fascinating creatures." Large format, unpaginated. Map endpapers. ISBN: 0-15200520X.

Rochester, VT: Park Street Press, (2009). First edition - An account of almost half a century of pioneering research in the Amazon and Peru by this noted anthropologist studying hallucinogens, including ayahuasca. Although the Harvard ethnobotanist Richard Evans Schultes was credited in the early 1950s as being the first to document the use of ayahuasca, other researchers, including de Rios, were responsible for furthering his findings and uncovering the curative capabilities of this compound. Illustrated with photographs, including some in full color. Glossary, list of publications by de Rios, bibliography, index. xvi, 190 pp. ISBN: 9781594773136.

New York: Dial Press, 1977. dj. Hardcover first edition - Novel of suspense and romance set in the upper Amazon in the late 1800's - a story based on historical fact. 310 pp. Map endpapers. ISBN: 0-8037-06308.

San Francisco: Mercury House, (1987) dj. Hardcover first edition - The first novel by this journalist and explorer, who was involved in several Amazon expeditions - the story of a young attorney who decides to take some time off to explore the world, but when he wanders into the Amazon jungle and gets lost, he finds himself "shanghaied by evil botanist and the unwitting guest of a series of Indian tribes." 194 pp. ISBN: 0-916515214.

New York: Cupples & Leon Company, (1927). Hardcover - Fourth book in this series about a boy raised in the jungles of South America by a "half-demented naturalist who told the lad nothing of his past" Plain frontispiece. Lists to #5 at the beginning of the book 209 pp. ISBN: 0-448-147025.

Cambridge, MA: Botanical Museum of Harvard University, 1957. Contains two articles by Richard Schultes, who was one of the world's leading authorities on hallucinogenic and medicinal plants, a botanical explorer, a pioneering conservationist, and a teacher and mentor, as well as being credited as the modern founder of the science of ethnobotany who documented the use of over 2000 medicinal plants, mainly from the Colombian Amazon. Illustrated with 1 drawing and 1 map. pp241-264.

Cambridge, MA: Botanical Musuem of Harvard University, 1977. First edition - Contains two articles by Richard Schultes, who was one of the world's leading authorities on hallucinogenic and medicinal plants, a botanical explorer, a pioneering conservationist, and a teacher and mentor, as well as being credited as the modern founder of the science of ethnobotany who documented the use of over 2000 medicinal plants, mainly from the Colombian Amazon. The first article on Hevea is illustrated with 2 plates of botanical drawings and 2 maps. The second article by Schultes, Tony Swain and Timothy C. Plowman is on the changing usage of Virola as a hallucinogenic and is illustrated with 1 map and 5 plates of photographs. . pp 243-272.

New York: Coward, McCann & Geoghegan, (1980) dj. Hardcover first edition - A profile of modern Brazil - and especially an account of how the capital, Brasilia, was carved out of the center of the country between 1955 and 1960. 209 pp. ISBN: 0-69811048x.

New York: Time Incorporated, 1964. Classic story of traveling on a freighter from London to the upper reaches of the Amazon. Includes a new introduction by V. S. Pritchett.