In the spirit of better investing and in celebration of the first Worldwide Invest Better Day coming up on Sept. 25, Motley Fool analysts will be answering user- and reader-submitted questions leading up to the big event. "Ask a Fool" anything, and we'll do our best to help you invest better.

Have you ever wondered exactly what "the stock market" is? In the following video, Fool.com analyst Austin Smith explains that a stock market is an interconnected web of exchangers, buyers, and sellers. Investors trade small pieces of ownership of publicly owned companies, which range from the small and obscure all the way to giants like Apple a(NASDAQ:AAPL)

Click the big green button to join the thousands of people celebrating Worldwide Invest Better Day on Sept. 25!

Austin Smith owns shares of Apple. The Motley Fool owns shares of Apple, Bank of America, and ExxonMobil. Motley Fool newsletter services recommend Apple. Try any of our Foolish newsletter services free for 30 days. We Fools don't all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.