Tolkien’s Lost Chaucer

Tolkien's Lost Chaucer is a scholarly book by John M. Bowers, published in 2019 by the Oxford University Press. It explores J.R.R. Tolkien's unfinished and previously unknown work, known as the "Clarendon Chaucer" — an edition of Geoffrey Chaucer's poetry.

The book does not publish long texts from this work, but rather quotes from its materials to discuss Tolkien's thoughts on Chaucer's language and storytelling. And also by drawing upon some other unpublished writings, it shows how Chaucer was a major influence on Tolkien's own writings.

Substantial portions of materials from this work have been published in Bowers' new book, Tolkien on Chaucer, 1913-1959.