Carta a Mr and Mrs Kloos

Written from 18 April to 6 May 1963 (suffering from symptoms of fibrositis, he could not finish the letter at once), J.R.R. Tolkien wrote a letter to Mr and Mrs Kloos. Anneke C. Kloos-Adriaansen and P. Kloos were anthropologists.

• Subject: Replying to their letter from 23 March, Tolkien writes at length about "his sources and inspiration for The Hobbit and The Lord of the Rings".
• Publication: Excerpts from the letter were published in The Lord of the Rings: A Reader's Companion.