From publisher blurb:
Glassworking is a mysterious art to most Hârnians and its
practitioners are sometimes presumed to use magic. Glass is most commonly encountered in the form of expensive tableware, mirrors and lanterns, and bottles for luxury perfumes, exotic spices, and imported spirits. Glass jars, flasks, and tubes are in demand from alchemists, apothecaries, and students of arcane lore. A few glassworkers are experimenting with grinding lenses and prisms useful to navigators, cartographers, and scholars.
Glass is generally the preserve of the wealthy. Nobles aspire to have goblets and wineglasses to complement their silver dinner service. Plain or stained glass windows are far too expensive for most people, but selected chambers in castles and temples can feature fine works.
This article describes the organization and activities of the Glassworkers' Guild as well the guild's place in Hârnic society. Details are also provided regarding making glassware, decorative glass, esoteric arts, and Kjal's glassworks in Thay.