It is an illustrated tour of the structures and patterns we call “math”. The only numbers in this course are the course numbers. Math Without Numbers is a vivid and conversational guide to the main branches of abstract math—topology and category theory. This course upends the conventional approach to math, inviting you to think creatively about shape and dimension, the infinite and infinitesimal, symmetries, proofs, and how these concepts all fit together. What awaits you is a freewheeling tour of the inimitable joys and unsolved mysteries of this curiously powerful subject. (This course is inspired by the book MATH WITHOUT NUMBERS by Milo Beckman)