"Ninety percent of the world's designers spend all their time working on solutions to the problems of the richest 10 percent of the world's customers. A revolution in design is needed to reverse this silly ratio and reach the other 90 percent. In my book, Out of Poverty, I talk about how this can be done. I pull stories from some of the 17 million people I've help lift from poverty with the organization I founded 25 years ago, International Development Enterprises. More recently, we have incorporated an organization called D-Rev: Design for the Other Ninety Percent, whose mission is to create the design revolution."