The Latin Background 1100-1550 contains authoritative editions of Latin texts and correspondence (with translations) from some of the most important figures of medieval England.

Bacon, Roger. Roger Bacon and the Origins of Perspectiva in the Middle Ages. A critical edition and English translation, with introduction and notes by David C. Lindberg. Oxford: Clarendon Press; New York: Oxford University Press, 1996.

_____. Roger Bacon's Philosophy of Nature. A critical edition, with English translation, introduction, and notes, of De multiplicatione specierum and De speculis comburentibus. Edited by David C. Lindberg. Oxford [Oxfordshire]: Clarendon Press; New York: Oxford University Press, 1983.

Fox, Richard. Letters of Richard Fox, 1486-1527. Edited by P. S. and H. M. Allen. Oxford: Clarendon Press, 1929.

John of Salisbury. The Letters of John of Salisbury. Edited with a facing-page translation from the Latin text by H. E. Butler and W. J. Millor, revised by C. N. L. Brooke. 2 vols. Vol. 1, Oxford [Oxfordshire]: Clarendon Press; New York: Oxford University Press, 1986- (reissue). Vol. 2, Oxford University Press, 1979.

Thomas à Becket. The Correspondence of Thomas Becket, Archbishop of Canterbury, 1162-1170. Edited with a translation by Anne Duggan. 2 vols. New York: Clarendon Press, 2000.

Wyclif, Iohannis. Tractatus de universalibus. Edited by Ivan J. Mueller and translated by Anthony Kenny. Vol. 1 of 2. Oxford [Oxfordshire]: Clarendon Press; New York: Oxford University Press, 1985.

Wyclif, John. On Universals. Translated by Anthony Kenny with an introduction by Paul Vincent Spade. Vol. 2 of 2. Oxford [Oxfordshire]: Clarendon Press; New York: Oxford University Press, 1985.