What does it mean “to dell?” This newly coined business verb means to mass-customize, making products only in response to actual demand. This allows a product to “go direct” to a customer, and it’s what Dell Computer does instead of forcing mass-produced computers on its customers. And Dell’s not alone. As Editors Jim Gilmore and Joe Pine point out in their introduction to Markets of One, mass customization is a trend that has caught on among consumer and business-to-business companies alike – think of Levi’s jeans, Aramark’s hospital services, Select Comfort mattresses, and Peapod or Streamline grocery delivery, to name a few. Companies customize their offerings to meet the unique needs of individual customers so that nearly everyone can obtain exactly what they want at a reasonable price. It’s a paradigm shift away from the one-size-fits-all way managers have thought about markets over the past century- today, every individual customer is a market of one.