Lots of people buy books and products from Amazon, an online seller.
They order and pay over the Internet and the books are shipped through the mail or a delivery service like FedEx.
One day, people could get their Amazon deliveries from an “unmanned aerial vehicle” — a tiny flying vehicle that looks like a toy helicopter.
And instead of waiting days to get the parcel, it could be at the buyer’s home in half an hour or less.
The company is working on a fleet of tiny vehicles they call “Prime Air.”
The vehicles are also known as “octocopters.”