You know the type: they can work a room. Everybody likes them, and everything is just one call away. Decades ago, a curious young man named Dale Carnegie hypothesized that this type of charisma could be taught. So he interviewed dozens of the world’s most powerful people hoping to distill their intangible magnetism into a set of learnable principles. The result was “How to Win Friends and Influence People,” a book that has itself been distilled into a one-page flow chart. Happy Networking!