Does anybody know where to get free textbooks?

Question

I'm not in school. I finished college a long time ago. I have been lately in want of brushing up on my math skills. However, I do not want to spend $100 plus for textbooks; that would be ridiculous for somebody who is not actually going to school. Does anybody know where I can find free Trigonometry and Calculus books? Actual books would be good but something online, PDFs, etc., would be just fine as well.

Answer 1

You can try freecycle.org, its an amazing site where you get used things for free, in addition you can also look at math sites online. A woman offered me a bunch of old UIC textbooks she no longer used for free.

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