Comments and mentions from HN threads:
Ask HN: Which non-technology book has influenced you the most and why?
wazoox: There is some hacking, and a strange battle against people wanting to believe their own truth (does that ring a bell?). Extremely contemporaneous, alas.
Ask HN: What books changed the way you think about almost everything?
brownbat: People could get different takeaways, but it made me think very deeply about falsifiability, the limits of persuasion, and the thin lines between plausible, reasonable, and likely theories about the world.