William Delbert Gann
William Delbert Gann (June 6, 1878 – June 18, 1955) or WD Gann, was a finance trader who developed the technical analysis tools known as Gann angles, Square of 9, Hexagon, Circle of 360 (these are Master charts). Gann market forecasting methods are based on geometry, astronomy and astrology, and ancient mathematics. Opinions are sharply divided on the value and relevance of his work. Gann wrote a number of books on trading.
Gann was born June 6, 1878 in Lufkin, Texas. His father was a cotton farmer. He started trading in 1902 when he was 24.
He was believed to be a religious man by nature who believed in religious as well as scientific value of Bible as the greatest book ever written. This can be repeatedly observed in his books. He was also a 32nd degree Freemason of the Scottish Rite Order, to which some have attributed his knowledge of ancient mathematics, though he was also known to have studied the ancient Greek and Egyptian cultures.
Stock market trading 
Gann described the use of angles in the stock market in The Basis of My Forecasting Method (1935). Calculating a Gann angle is equivalent to finding the derivative of a particular line on a chart in a simple way. Each geometrical angle (which is really a line extended into space) divides time and price into proportionate parts. The most important angle Gann called the 1x1 or the 45° angle, which he said represented one unit of price for one unit of time. If you draw a perfect square and then draw a diagonal line from one corner of the square to the other, you have illustrated the concept of the 1x1 angle, which moves up one point per day.
There has been a general disagreement whether he made profits by speculation himself. However, his famous Ticker Interview shows that his claim to profits was as real as his documented forecasts.
- Truth of The Stock Tape (1923)
- Tunnel Thru The Air (1927)
- Wall Street Stock Selector (1930)
- New Stock Trend Detector (1936)
- Face Facts America (1940)
- How to Make Profits in Commodities (1941)
- 45 Years in Wall Street (1949)
- The Magic Word (1950)
- WD Gann Economic Forecaster (1954)
- How to Make Profits Trading In Puts And Calls
See also 
- "W.D. Gann bio". salivon.com.ua. Retrieved 2011-09-05.
- HKW. "Gann Theory". Acrotec.com. Retrieved 2011-02-18.
- "About W D Gann and George Bayer". Moneymakingcharts.com. Retrieved 2011-02-18.
- by Gann, W.D. (2011-01-05). "Books - Products". WD Gann. Retrieved 2011-02-18.
- "WD Gann". Schoolofgann.com. Retrieved 2011-02-18.
- He was left handed. "Pattern, Price & Time: Using Gann ... - Google Book Search". books.google.co.uk. Retrieved 2009-03-15.
- Gann, William (1987-12-31). The Tunnel Thru the Air, or, Looking Back from 1940. lambert gann publishing company. p. 418. ISBN 0939093057.
- Brown, Constance (2007). Breakthroughs in Technical Analysis. Chapter 5, Price and Time: Bloomberg.
- Achelis, Steven B. (2000). Technical Analysis from A to Z: Covers Every Trading Tool from the Absolute Breadth Index to the Zig Zag. McGraw-Hill Professional. ISBN 0071363483.
- Gately, Edward (1998). "Forecasting profits using price & time". John Wiley and Sons. Retrieved 2009-03-25.
- "Ticker Interview".
- Interview with W.D. Gann By Richard Wyckoff
- A short video presentation on the life of W.D. Gann
- “Rediscovering Gann’s Law Of Vibration”, Market Technician, December 2007
- Journal of Commerce article from January 15, 1921, describing the basis for Gann's forecasts