Design is a fundamental element of life, an enzyme necessary to our evolution. It helps us cope with change and permeates our personal and social lives, embodying both our strengths and weaknesses. Many designers are intent on creating new behaviors, focusing on habits and circumstances most in need of change. Pirouette: Turning Points in Designfeatures objects—from Post-Its to Spanx—that embodied experiments with new materials, technologies, and concepts; offered unconventional solutions to conventional problems; and had a deep impact both on design and the world at large.