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Dale Carnegie reads aloud from his book "How to Win Friends and Influence People."
Some of the most influential business books are available for next to nothing (or even nothing) in the Amazon Kindle store.
For less than $5, you can gather timeless wisdom from classics like Dale Carnegie's "How to Win Friends and Influence People," build your economic background with world-changing texts like John Maynard Keynes' "The General Theory of Employment, Interest, and Money," and get insight from ancient texts like Marcus Aurelius's "Meditations."
A few modern classics, like Susan Cain's "Quiet: The Power of Introverts in a World That Can't Stop Talking" are also available.
If you've got a Kindle and a few bucks to spare, it's time to get reading.
Disclosure: Jeff Bezos is an investor in Business Insider through his personal investment company Bezos Expeditions.