This comprehensive two-volume catalogue covers the outstanding collection of English and French medieval stained glass in the Metropolitan Museum of Art in New York. Written by curator Jane Hayward, the catalogue is posthumously published as Part I in the Corpus Vitrearum series and represents the culmination of Hayward's pioneering work in the field. 123 panels are examined in depth, ranging from 12th-century border ornaments from the Abbey Church of Saint-Denis to early 16th-century English Passion glass. The catalogue is illustrated with over 500 black and white reproductions and 40 colour plates. It includes discussions on provenance, collection history, dating, style, and iconography, as well as detailed descriptions, restoration charts, and considerations of the current condition of each panel.