According to Rosa (2010), some 21 to 23 percent o the United States consumers simply do not have the basic language and numeracy skill that are necessary to effectively navigate todays typical retail shopping environment. In many developing countries, the proportion of consumers who are functionally illiterate is even higher. But these groups have surprising purchasing power, controlling $380 billion in spending in the United States alone in 2011.

Can you name a company that is focusing their efforts on this segments of the population? What are they doing and how are they marketing to this segment?