The most important essay in the history of Beowulf scholarship, J.R.R. Tolkien's "Beowulf: the monsters and the critics" has been much studied and discussed. But scholars of both Beowulf and Tolkien have to this point been unaware that Tolkien's essay was a redaction of a much longer and more substantial work, Beowulf and the critics, which Tolkien wrote in the 1930s and probably delivered as a series of Oxford lectures. This critical edition of Beowulf and the critics presents both unpublished versions of Tolkien's lecture, each substantially different from the other and from the final, published essay. The edition included a description of the manuscript, complete textual and explanatory notes, and a detailed critical introduction that explains the place of Tolkien's Anglo-Saxon scholarship both in the history of Beowulf scholarship and in literary history.