Some people believe that, unless you work in the world of finance, there is no need to understand financial terms and concepts. Well, nothing could be further from the truth. Finance is a core part of society, and financial literacy is important for everyone. At the same time, some of these terms are thrown around without fully understanding their meaning. What is a principal? Is compound interest different from normal interest? What is a person’s net worth? Here are 10 financial concepts that everyone should know.