Danger can come from anywhere. You know natural disaster, such as earthquakes, flood and and also know the danger caused by human themselves, such as a terrorist attack, kidnapping for the purpose of blackmail. In the modern society, the latter has already been a fundamental source of danger and the personalized danger becomes the big problem. It comes from anyone's any choice and also different dealing methods under different choice. The book can help you improve your safety consciousness, know the self-protection methods and think a better way to deal with danger.