William Gann, a stocks and commodities trader with ample experience, shares advice to those new to trading on the stock market. As an early work of Gann's, the Truth of the Stock Tape advises the reader on how to anticipate and react to various movements in the stock market. The methodology Gann employed in his earlier career is more concerned with the psychology of the market. Gann begins by noting how traders with patience and nerve - backed up by sound evidence that a company is or imminently will perform well - tend to win out versus the impatient, nervous and flighty investors. Later in life, Gann became famous for supplementing his investment strategies with the use of astrology. He believed that the alignments of the planets influenced how investors behaved on a trading day, and created many courses to demonstrate the effectiveness of his strategy and predictive charts. Gann's charting strategy attracted a following which exists to this day, with computer software mimicking his methods.