This book mainly talks about Huawei's "gray scale", which is also an important reason for Huawei's enduring. This book emphasizes that in mechanism, we should pay attention to the process and weaken the dependence on individuals; In management, we emphasize struggle, do not retain idle people, but give enough rewards. In addition, the book also mentioned that employing people in enterprises is very important for understanding human nature, and it is also very helpful for helping to establish an enterprise employment system. For example, the quality, initiative, conceptual thinking, influence, achievement orientation and tenacity of enterprise talents are all factors that need to be studied. After evaluation, people with different characteristics can be better placed, thus affecting the core competitiveness of enterprises.