The Collected Letters of Robinson Jeffers, James Karman, Ed. Stanford University Press.

Letters of Una, Robert Brophy and Robert Kafka. Many of the letters of Una Jeffers have been printed in The Robinson Jeffers Newsletter (now Jeffers Studies) under the series heading of Una Jeffers, Correspondent.

The Architecture of the Poetic Life, Peter Quigley. An exploration of the relation between the work of the following writers and their houses: Thoreau, Robinson Jeffers, Wendell Berry, Scott R Sanders, Gary Snyder, Jack London, Zane Grey

Who's Who in Jeffers, Robert Brophy, Brenda Jeffers, Rob Kafka, and Jim Karman.