It is common knowledge and over mentioned. You wouldn't introduce Sir Paul McCartney as an original Beatle. Burton Malkiel's work is practically the foundation of Index investing. The book makes his research accessible for all. Incidentally, Malkiel is on the board of Vanguard.
Caveat. Obviously the book has nothing to do about trading. It's just what I recommend to newbs and family who ask questions.
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Agree with your last paragraph; ALSO,Vanguard out voted BM,JV, that is why they offer funds one can trade-invest[NOT JUST BUY @ END OF DAY;LOL some like the freedom to buy @ their time NOT just @ close] NOT really an ad for trading-investing simply; market info..................................................................................................Thanks