Language and Human Nature
Language and Human Nature was a joint literature project between C. S. Lewis and J. R. R. Tolkien. Their published had announced that the book was to be published in 1950 but it was never completed.
In 2009 Regents’ Professor and Chair of the Texas State University Department of Communication Studies Steven Beebe discovered the beginning pages of the manuscript in the Oxford University Bodleian Library.
According to Beebe "the manuscript includes some of Lewis’s best and most precise statements about the nature of language and meaning. Both Lewis and Tolkien wrote separately about language, communication, and meaning, but they published nothing collaboratively."