On Are Numbers Real?
Clegg, Brian. Are Numbers Real?: The Uncanny Relationship of Mathematics and the Physical World. New York: St. Martin's Press, 2016. pp. 288. Cloth.
Are numbers real? Some are.
Is math useful? Usually yes, sometimes no.
In this book, Clegg takes us on a whirlwind tour from the invention of numbers (likely simple abstraction through counting) to the current state, where advances in math generally have little to nothing to do with the world as we know it (although these advances might be used, we just don’t know yet).