The Long and Short Classics (Upper and Lower Classics) is a book published by Zhongzhou Ancient Books Publishing House in 2007 by Tang.

The Long and Short Classics is a masterpiece of China's ancient strategic achievements, which explains China's ancient strategic thoughts from all directions and angles, from governing the country with soldiers, knowing people and employing people, to being worldly and wise in life. This book sublimates the core of strategy in the magnificent historical picture exhibition, and reveals the true meaning of strategy in the vivid narrative of historical events and life stories. It is both thrilling and interesting to read and unforgettable.