Ramsey has published several personal finance books, as well as classes, workbooks and a podcast. But this is his most notable contribution, with two years on the New York Times Best Seller list and 5 million copies sold. His advice is collected into seven easy steps, which will help you get and stay out of debt, invest, save, increase your cash flow, and change your attitude about money. The exercises and activities inside make following his steps out of debt and toward security easy.