The Book of Satoshi of course. As well as the early writings in the mailing lists. And while not a book the early writings of the Nakamoto Institute. There's also good technical books, not least the ones by Andreas Antonopoulos and Kalle Rosenbaum. And I guess Sovereign Individual should be mentioned but I guess you've already read it.

Non-bitcoin: So many tbh. Peaceful warrior is great (also a great movie). Robert Greene's series are interesting. The Fountainhead. I dunno, so many really.