This book contains wonderful stock market theories. Commodity Market legend William D. Gann was presented various trading systems. All are simple mathematical calculations. Don't have technical knowledge of stock market? No worries. By using his simple mathematical calculations, you can trade markets and book handsome profits. This book contains 4 theories. 1. Gann Midpoint Theory 2. Gann Square of 9 Theory 3. Gann Angle Theory and my bonus Fibonacci Retracement