The book of the great Chinese commander Sun Tzu is not just a treatise on how to properly prepare for a war, start a war, wage it and end it - it is a huge philosophical work that does not lose its relevance in our everyday life. Each of us can successfully apply all the advice from Sun Tzu to our lives: in business, at work, in relationships - everywhere. It is the universality of the book that prevents it from losing its relevance.