QuickStudy Reference Guides is the trademarked brand of BarCharts Inc., the leading American publisher of laminated quick-reference study cards and pocket guides. Founded in 1991 by Cynthia and Patrick Wallace in Boca Raton, Florida, BarCharts publishes more than five hundred QuickStudy titles across academic subjects, professional reference, software, languages, medicine, and the humanities. The laminated three-panel and six-panel reference formats are standard fixtures in American college bookstores.