This document outlines the evolution of user experience (UX) design over 20 years from 1990 to 2010. It shows how UX has grown from a niche concept to essential for business success. Key points highlighted include: - UX has progressed from fixing usability problems to creating better life experiences. - Individuals working in UX roles like research, design, and product management can make a difference and impact businesses. - Over the 20 years, UX has demonstrated it can reduce costs, increase revenue, and provide competitive advantages for companies.