Every day, people make choices about what to buy and sell, from food to electronics. This accessible resource introduces, explores, and explains who the buyers and sellers are as well as how people decide what they need and want and how the marketplace is changing with technological advances. Readers are provided with an overview of the marketplace and its participants. This book explores key economic concepts, like scarcity, resources, incentives, supply, demand, and market structures while providing readers with strategies for making smart buying and selling decisions.