A Random Walk Down Wall Street
Few investing books have had the staying power of Malkiel's foundational case for index-fund investing. The core argument — that markets price in available information efficiently, making it nearly impossible for active managers to consistently beat a simple index fund — is made clearly and backed by evidence, with enough financial history and bubble analysis to make it genuinely engaging rather than just a policy brief. The 1999 edition was current for its time and still readable today. The caveat is worth flagging: it predates the dot-com crash, the 2008 financial crisis, and the rise of cryptocurrency, so the updated 2023 edition is more relevant for anyone making current decisions. As an introduction to passive investing philosophy, though, the core argument has only gotten stronger with time.