I'm legitimately curious what books you'd recommend as tech reading? I'm sure it's out there, but outside of reference docs/books, I'm not sure I've really read

I'm legitimately curious what books you'd recommend as tech reading? I'm sure it's out there, but outside of reference docs/books, I'm not sure I've really read much of any books that were directly relevant to my job from a technical perspective. I've read plenty of articles/post-mortems, watched tech-talks, and read docs for new tools and languages, but I've had job applications specifically ask about the last technical book I've read and I've never known what they thought I should have been reading...