The first source, “The Richest Man in Babylon,” is a collection of parables written by George S. Clason in the 1920s. It uses ancient Babylonian characters to illustrate practical financial principles that are still relevant today. The second source is a letter written by an English professor who found a copy of “The Richest Man in Babylon” among the ruins of Babylon. The professor’s letter describes how he uses the book’s principles to manage his personal finances and how it has been helpful for his family. Finally, the third source provides a short biography of George S. Clason and a synopsis of his writings.