First published in August 1949, ‘45 Years in Wall Street’ by William D. Gann, gives a thorough explanation of investment rules for new and seasoned investors alike. This book should be read over and over until they become clear and fluid practices in your everyday portfolio management. This also includes all the original charts and tables.Dr. Gann was a famous American economist and stock market analyst in New York City in the early twentieth century. Gann, a finance trader, developed a number of technical analysis methods, including the Gann angles and the Master Charts, the latter being a collective name for his various tools like the Square of Nine, the Hexagon Chart, and the Circle of 360. His market forecasting methods were based on geometry, astronomy and astrology, and ancient mathematics.