This trivia book on money provides information on various aspects of money. Do you know what the most widely used note is? This book shows the longevity of most notes before they wear out. It provides information on the size of U.S. notes, their values, and it distinguishes between new money and bad money. Mathematical problems are written throughout the book.This trivia book on money provides information on various aspects of money. Do you know what the most widely used note is? This book shows the longevity of most notes before they wear out. It provides information on the size of U.S. notes, their values, and it distinguishes between new money and bad money. Mathematical problems are written throughout the book.