Developments in conservation mean that more complete and fragmentary glass vessels survive from the medieval period to the present day than ever before, revealing new information about medieval English glassmaking technology and the social context of these beautiful objects. This highly useful report presents the results of recent research on medieval glass, based on about 1350 vessels, with discussions of developments of craftsmanship and design, the social status of owners of glass vessels and methods of identifying and researching medieval glass. Includes an illustrated catalogue of the different forms of vessels, including goblets, bowls, bottles, lamps and miscellaneous decorated pieces.