NICHOLAS D. KRISTOF and SHERYL WuDUNN, the first husband and wife to share a Pulitzer Prize for journalism, have coauthored four previous books: A Path Appears, Half the Sky, Thunder from the East, and China Wakes. They were awarded a Pulitzer in 1990 for their coverage of China, as well as the 2009 Dayton Literary Peace Prize for Lifetime Achievement. Now an op-ed columnist for The New York Times, Kristof was previously bureau chief in Hong Kong, Beijing, and Tokyo. He won his second Pulitzer in 2006 for his columns on Darfur. WuDunn worked at the Times as a business editor and foreign correspondent in Tokyo and Beijing, and now works in finance and consulting. They live in Oregon.