Charlie Munger, Berkshire Hathaway's visionary vice chairman and Warren Buffett's indispensable financial partner, has outperformed market indexes again and again, and he believes any investor can do the same. His notion of "elementary, worldly wisdom"--a set of interdisciplinary mental models involving economics, business, psychology, ethics, and management--allows him to keep his emotions out of his investments and avoid the common pitfalls of...