The document provides an overview of the fast food industry. It discusses: 1) The industry's origins after WWII and its growth to $160 billion in revenue by 2014, forecast to reach $210 billion by 2018. 2) The main segments of the industry including burgers, sandwiches, snacks, Mexican, pizza/pasta, chicken and Asian/seafood. 3) Key factors in the industry including competition between chains, regulations, and changing consumer preferences toward healthier options. 4) The industry is mature with intense competition as chains try to increase market share through customer service, costs and product lines.