There are many books on sea glass that make good companions to sale of sea glass items, but these stand out– Passion for Sea Glass and Sea Glass Chronicles, by C.S. Lambert (Downeast Publishing) and Pure Sea Glass, by Richard LaMotte. Cape Ann Designs also sells companion books, notecards, etc.. at shows. Annually, there is a Sea Glass Festival held around the country which was started in Cape Ann. www.artsgloucester.com/seaglassfestival. For more resources, please see our sea glass resource page.