Mark Skousen has built his impressive reputation as one of the industry's best-known investment advisors by consistently beating the market year after year. Now, he passes along his entire investment philosophy, based on his decades of experience, in a single, one-lesson book. Investing in One Lesson first unravels the intricacies of Wall Street, explaining in layman's terms why financial markets frequently behave in seemingly irrational ways. Then Skousen reveals his surprisingly simple strategy for making money in the stock market and shows why his approach stands the test of time and the scrutiny of skeptics. Including personal anecdotes from Skousen's career, Investing in One Lesson is an indispensable guide for beginning investors or those seeking to increase their returns.