Principal of Duarte Design since 1990, Nancy Duarte passionately pursues the presentation development and design niche. One of the largest design firms in Silicon Valley and listed as a top woman-owned business in the area, Duarte Design is one of the few agencies in the world focused solely on presentations, whether they are delivered in person, online or via mobile device. Nancy's twenty years of experience working with global companies and thought leaders has influenced the perception of some of the world's most valuable brands and many of humanity's common causes.