"Huygens and Barrow, Newton and Hooke" by Vladimir Arnold (would literally recommend any of his books).

I just finished The Nothing That Is - it was alright. The illustrations were cool, but the writing and content were only okay imo.

I really enjoyed Fermat's Last Theorem.

I've also heard good things about

- Zero: The Biography of a Dangerous Idea

- Journey Through Genius

The World of Mathematics by James R. Newman is a classic, filled with great biographies and short essays about various parts of math.

Stillwell's Mathematics and Its History.