Happy New Year Codeforces community!

Last year I started reading more books than usual, and this year I want to keep up the pace. For this reason, I came here to ask for your book recommendations.

I will appreciate CP/Problem-Solving related books, but feel free to recommend anything! :)

Please share your recommendations, and again Happy New Year!

Edit: I apologize if I didn't respond to your recommendation. To avoid creating unnecessary flood, I want to thank everyone who shared their favorite books. I'm really grateful for your recommendations!