London is the world’s most diverse city, with more than 30 percent of its residents hailing from outside England. This diversity is abundantly evident on market day in East London, as thousands of people crush into Petticoat Lane, and the trendier Up Market at the far end of Brick Lane, speaking dozens of languages. Women in short skirts brush shoulders with women in full-length burqas. Jamaican men discuss watches with a Cockney-speaking vendor. African CD sellers play a mix of gospel and Johnny Cash. Muslim students strategically place a table to offer books and conversation to passersby, while shoppers gather at an outdoor café to hear a man and a woman perform a hip-hop duet.