Recommendations for free, yet hi quality non-fiction?
More thinking of academy books, sociology, history, algebra, psychology, computer science, technical stuff, finance and stock markets, chemistry, biology, and other deep stuff that's up to date, and good (filled with up to date information).
I find it harder to find good quality material from the free non-fiction section
Last edited by ProDigit; 11-19-2015 at 08:36 AM.
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