Prediction of stock with Gao’s equation is a unique book that discuss how to apply a new method (dynamic balancing of moving average) to predict stock price. A specially desined stock ruler, a worksheet, and an instruction of how to use the stock ruler are included. The idea of Feng Shui and Ba Gua is used to evaluate 9 grades of stock strength that can simplify the method of prediction of stock price of tomorrow with the sliding stock ruler. Some arts, peoms, and abstract of a tale are inserted. This is an economic version of the book (printed in black and white) to reduce the cost. The original version is printed in full color. A full color copy with color stock ruler and worksheet may find at Lulu.com under the same author. Refer to the web site http://www.lulu.com/content/73939 which is printed with better quality paper.