As I said in the fiction thread, I am reading many nonfiction books currently.
They include (but certainly not limited to):
From Eternity to Here - Sean Carroll
Being and Nothingness - Jean-Paul Sartre
The Myth of Sisyphus and Other Essays - Albert Camus
Cicero - Anthony Meritt
The History of Western Philosophy - Bertrand Russell
Pragmatism and Other Writings - William James
The Existentialist's Guide - Gary Cox
At the Existentialist Café - Sarah Bakewell
…
I can keep going here, but as I have shown, I have a fondness for philosophy, physics, and history nonfiction books. I also like writing guides, math books, and psychology books. (I have over 250 books in my room, and only 10 are fiction.)