Found in 2 comments on Hacker News
thebrid · 2020-07-10 · Original thread
I highly recommend "The Little Book of Common Sense Investing" by Jack Bogle. It's a super short book full of great advice from the inventor of the Index Fund:

whitepoplar · 2018-06-20 · Original thread
Read anything by William Bernstein or Jack Bogle.

You can start here with Bernstein:

Or here with Bogle:

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