John Wyclif (d. 1384) was among the leading schoolmen of fourteenth-century Europe. He was an outspoken controversialist, critic of the church and, in his last days at Oxford, the author of the greatest heresy England had ever seen. Throughout his academic career, Wyclif produced a vast number of scholarly works in Latin, ranging from his early logical and philosophical writings to his mature theological texts, pastoral writings and polemical tracts. To date, however, very little has been available in English translation. This collection represents the first attempt to offer a representative sample of Wyclif's Latin works in translation in a single volume. It contains a selection of substantial extracts from Wyclif's major theological contributions, together with complete translations of his shorter tracts and polemical treatises. Each text is carefully annotated, and a glossary of frequently used technical terms is included at the end. Translated texts are grouped under thematic headings for ease of reference, and a small selection of early philosophical material is supplied in the appendix. This collection will be of interest to undergraduate and graduate students of medieval history, historical theology and religious heresy, as well as scholars in the field.