Explore the surprising connections between math and maps—and the myriad ways they’ve shaped our world and us.

Why are coastlines and borders so difficult to measure? How does a UPS driver deliver hundreds of packages in a single day? And where do elusive serial killers hide? The answers lie in the crucial connection between math and maps.

In Mapmatics, mathematician Paulina Rowińska leads us on a journey around the globe to discover how math and maps are deeply entwined, and always have been. From a sixteenth-century map, an indispensable navigation tool that exaggerates the size of northern countries, to public transport maps that both guide and confound passengers, to congressional maps that can empower or silence whole communities, maps and math have shaped not only our sense of space but our worldview. Rowińska shows that by understanding the math behind maps, we can recognize their biases. And we can appreciate the ingenious tools mathematicians are developing to resolve them.

Written with authority and compassion, wit and unforgettable storytelling, Mapmatics is math exposition at its best. By unpacking the math underlying the maps we depend on, this book illuminates how our world works, and, ultimately, how we can better look after it.

Paulina Rowińska is a math communicator with a PhD in mathematics. The recipient of the Imperial College President’s Award for Excellence in Societal Engagement, she creates interactive content for the educational website brilliant.org.