Jean Merrill

"Not long ago the streets of New York City were smelly, smoggy, sotty, and loud. There were so many trucks making deliveries that it might take an hour for a car to travel just a few blocks. People blamed the truck owners and the truck owners blamed the little wooden pushcarts that traveled the city selling everything from flowers to hot dogs. Behind closed doors, the truck owners declared war on the pushcart peddlers." -- back cover.

A young girl describes how her school friend made over a million dollars by creating and marketing a cheaper and better toothpaste.