The authors present 404 glass vessels excavated in the Athenian Agora. Although mostly fragmentary, examples are given of almost every type of glass known from the Classical, Hellenistic, and Roman periods, and representative finds from Byzantine and later times. The remarkable value of this contribution to the history of glass is that so many of the fragments from the Agora can be dated by context. The catalogued objects are discussed by period and shape with extensive descriptions of the various techniques of their manufacture. An appendix to the volume presents evidence for a possible Late Roman glass furnace in the Agora. The wide scope of glass vessel types presented in this volume will provide an essential reference book for those interested in glass known from antiquity.