""Dollars and Sense or How to Get On: The Whole Secret in a Nutshell"" is a book written by P.T. Barnum, the famous American showman and businessman. The book is a guide to achieving financial success and is aimed at people who want to improve their financial situation. The book covers a wide range of topics including budgeting, saving, investing, and entrepreneurship. Barnum shares his own experiences and insights on how to make money and build wealth...