10% Discount Site-wide & Free Shipping! Get the code »

Christopher Thomas

Christopher Thomas holds a doctor of philosophy degree (Ph.D.) from Tufts University and is Professor of Math at Massachusetts College of Liberal Arts. His research centered on Geometric Group Theory, exploring places where algebra and geometry meet. He is the author of "Calculus Success in 20 minutes a Day" (2006) and "Trigonometry Success in 20 Minutes a Day" (2007). Barnett Rich (deceased) held a doctor of philosophy degree (Ph.D.) from Columbia University and a doctor of jurisprudence (J.D....See more