This document introduces the sixth annual BrandZ Top 100 Most Valuable Global Brands report. It highlights that the total value of the top 100 brands grew to $2.4 trillion in 2011, more than the GDP of Great Britain. Apple is ranked as the most valuable brand with a value equivalent to Peru's GDP. The report provides insights into how brands are building value across different sectors and regions. It also examines trends influencing brands like the digital revolution and generational shifts. New this year are in-depth analyses of brand development in Brazil, China, and India.