Burn Math Class by Jason Wilkes is interesting.

Seconded. also consider Lockhart's "Arithmetic". Bear in mind. These are both non-orthodox style books. Burn Math Class least orthodox.

An orthodox approach to Analysis would be Terence Tao's Analysis books.

Further recommendations depend on your specific goals.

Lockhart wrote another book, called measurement, with a different scope. It covers Geometry and Calculus in his whimsical style. It can give you many aha moments.

This is a nice recommendation! The chapters on circles and Trigonometry were amazing. But, man, it takes a lot of patience to slog through the dialogues.