Explore the intersection of font design and mathematics in this 28-minute conference talk from linux.conf.au 2020. Delve into topics such as nib pens, Donald Knuth's contributions, railroad tracks, and differential equations as they relate to typography. Discover how mathematical principles can be applied to the traditionally artistic field of font creation. Learn about curve algorithms, Euler spirals, and Raph Levien's spiro approach to font design. Gain insights into the creative process behind font development and the unexpected connections between seemingly disparate fields. No advanced mathematical knowledge is required to appreciate this intriguing exploration of fonts and math.