Murphy's Law, edited by Zhang Wencheng, collects 75 kinds of psychological effects, which is a popular reading of psychology, but every law and rule of psychology and management has very beneficial enlightenment for people to understand human nature or society.

The fundamental content of Murphy's law is that "everything that may go wrong will have a great chance of going wrong", that is to say, as long as the probability of any event is greater than zero, it cannot be assumed that it will not happen.