In my case, I stumbled upon an HN thread on index funds [1] and discovered Bogleheads Wiki page which was an insightful introduction to philosophy of personal finance. Eventually discovered Mr. Money Moustache as well which emphasizes more on behavioural aspects to maximize savings and accelerating financial independence. For me, Bogleheads reading list [4] has been an excellent source for improving personal finance knowledge.

[1] https://news.ycombinator.com/item?id=12368136 [2] https://www.bogleheads.org/wiki/Main_Page [3] https://www.mrmoneymustache.com/ [4] https://www.bogleheads.org/wiki/Books:_recommendations_and_r...