"Bingjian" is a treatise on people appraisal written by Zeng Guofan, an important official in the late Qing Dynasty. It talks about the art of recognizing and employing people. It observes and identifies talents from seven aspects: bones, strength and softness, appearance, mood, eyebrows, voice, and complexion. "The Book of Changes" is a strange book handed down from ancient times and is the "first of the classics". It talks about the method of self-improvement and virtue. It is a classic among classics, a philosophy among philosophy, and a strategy among strategies. The purpose of this book is to understand people using the method of "Bingjian" and to strengthen oneself using the method of "Book of Changes".