A book designed to teach children about business basics, this is the story of a young girl who wants a doll she sees on sale and must find a way to earn the money to pay for it.  After determining what marketable skills she has, she must find a way to cover start-up costs, so she goes to her friends and offers to let them in on the ground-floor:  they each invest a dollar in the hopes of sharing in the profits.  At the end of the story all the math works out nice-and-tidy, even allowing for sales tax.  In the back of the book, a two-page author’s note connects the dots for kids, explaining plainly the parallels between the story and the way the stock market works.