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About the Author

James Mars Langham was an author and a financial analyst who specialized in forecasting methods based on W. D. Gann’s techniques. He wrote several books on cyclical market forecasting, planetary effects on stock market prices, and trendline methods. He was born on September 6, 1877 in Philadelphia, Pennsylvania and died on July 22, 1966 in Pacific Palisades, California. He was buried in Woodlawn Cemetery in Santa Monica, California. He was the son of a noted English astrologer and was educated at the University of Pennsylvania.