Commitment to Quality

Differential Geometry is a one-person company, dedicated to quality products and responsive customer service. Your satisfaction with your purchases is among my highest priorities. If any part of your order is not what you expected, or if a problem beyond normal wear and tear arises at any time with a product you purchased at the Differential Geometry math art shop, kindly email to let me know. I stand behind what I design and sell, and am happy to work with you!

Andrew D. Hwang