tl;dr: I recently saw a LinkedIn post that asked for a list of books helpful for upping one's game as a technical product manager. This post is the result.
What is Technical Product Management?
I think of it as the combo/intersection of product management and technical work, so books that help me sharpen either of those are really valuable to me.
Here's a list of some of the books that have been most pivotal in my experience and have really helped me in my roles, especially as a PM.
I'm not including anything technical in this post, because it's gonna vary widely with what you're interested in? APIs? Databases? JS libraries? Search algorithms? Google books about those things. But here's a list of books about product management and related skills and ideas that have really influenced me. I may revisit and revise in the future.
The Purely Technical
About negotiation, collaboration, and management
The Unicorn Project - a followup to The Phoenix Project.
About product management as such
About business and careers in software development
Managing Oneself and The Effective Executive: The Definitive Guide to Getting the Right Things Done, both by the unsurpassed Peter Drucker
Managing Up for dealing with bosses that are hard to deal with, and how to keep them from getting hard to deal with