Marvelosissimo the Mathematical Magician and a group of children and animals perform a wide range of jobs, ranging from feeding fish to transplanting trees. When the workers get paid for their jobs, Marvelosissimo helps them count the money, and takes them to the bank where he explains the basics of banking. Information is provided in the back of the book explaining income taxes, loans, checking and saving accounts, and other important financial matters. Kellogg's cheerful illustrations help readers understand the complexities of working for pay, establishing a budget, and managing one's income. This is a whimsical math and picture book about money, the world of work, and the basics of personal finance.