Doris Lessing, pictured in 2006 at age 86 in her home in north London, was the free-thinking, world-traveling, often-polarizing writer of "The Golden Notebook" and dozens of other novels that reflected her own improbable journey across the former British Empire. The Nobel Prize-winning author died on Sunday, Nov. 17, 2013, at age 94. (AP Photo/Martin Cleaver)