This invaluable guide is not only a basic reference, but an identification tool that can be taken to auctions, shows, exhibits, and antique shops. This revised sixth edition includes a newly updated value guide, the catalog names for various shapes in cut glass, and the identity of 280 patterns of American and Canadian glass by catalog name. Many patterns are identified for the first time. It points out 130 cut glass pieces by company signatures, patent records, and magazine advertisements. In addition, this revised edition shows you how to analyze a pattern by finding the miter outline and matching it and the motifs to an illustration or picture in a catalog or book. It gives practical advice for buying and collecting unidentified pieces and answers questions on acid polish, repairs, investments, insurance, upgrading, and selling a collection. Over 900 exquisite photographs were taken expressly for this book. No collector, dealer, or appraiser will want to be without it!