A pictorial introduction to differential geometry, leading to Maxwell's equations as three pictures

Jonathan Gratus has posted an arXiv paper that teaches differential geometry entirely through pictures, with no equations.

The visual approach is designed to build intuition step by step and then present Maxwell's equations as three images.

It is aimed at pre-university students, undergraduates, and master's students studying relativity and related topics.

The paper could make advanced physics and math topics easier to learn by reducing reliance on formula-heavy explanations.