Point and Line to Plane by Wassily Kandinsky
I got some insights from that book but would not read it if I had something else to read.
The End of Everything by Katie Mack
Nerdy jokes and ultimate death.
What If? Serious Scientific Answers to Absurd Hypothetical Questions by Randall Munroe
If you have been on the internet for a long enough time, you know the XKCD and Randall Munroe. And he wrote the book. Good one.