Abrash, Merritt, "R.U.R. Restored and Reconsidered" in Extrapolation: A Journal of Science Fiction and Fantasy, Vol. 32, no. 2, Summer 1991, pp. 184-92.

This article offers a comparison between translations and suggests that in early translations as much as twenty-five percent of the text was censored to removed suggestive sexual or political content.

Harkins, William E., Karel Capek, Columbia University Press, 1962.

This is the only book-length biography of Capek in English. It contains a lengthy discussion of his works as well.

Kussi, Peter, editor. Toward the Radical Center: A Karel Capek Reader, Catbird Press, 1990.

This is a collection of essays about Capek's work and also contains a new translation of the play.

Suvin, Darko. Metamorphoses of Science Fiction, Yale University Press, 1979.

This book discusses the development of science fiction as a genre and Capek's place within the genre.