Includes bibliographical references (p. [252]-254) and index.

Concise history of glass -- American studio glass movement -- Contemporary marbles and the studio glass movement -- The expanding world of contemporary marbles -- More about marbles -- Ancient and antique handmade marbles -- American machine-made and foreign manufactured marbles -- Collecting contemporary marbles, spheres, and orbs -- Building your collection -- Caring for your collection -- Edition types -- What contemporary works to collect -- Regular stock or open edition production stock -- Prototypes -- Limited editions -- Experimental works -- The artist's mark -- Trademark and copyright use -- Crafting contemporary marbles, spheres, and orbs -- Studio glass works -- Decorative glass house works -- Artist's/craftsman's work -- The crafting process -- Grading -- Valuating -- More about marbles, spheres, and orbs -- Ancient, mineral and handmade non-glass marbles, spheres, and orbs -- Handmade glass marbles, spheres, and orbs -- Swirls -- End-of-day -- Lutz or aventurine glass -- American machine-made and foreign manufactured glass marbles and contemporary works -- Mimics, reproductions and repairs -- "Novel and inventive" contemporary marbles -- Spheres, and orbs -- Millefiori and Murrini -- Conclusion: in their own words -- Artists/craftsmen of the contemporary marble movement -- Glossary of terms -- Associated value guide -- Select bibliography -- Index.