Four essential novels by Graham Greene

Pico Iyer's new memoir is The Man Within My Head.He named his four favorite Graham Greene novels for The Daily Beast. One title on the list:Our Man in HavanaGreene could be wickedly funny, and part of the power of his work comes from a sense of P.G. Wodehouse bumping into Kafka. This story of a mild-mannered English vacuum-cleaner salesman in louche, 1950s Havana who is somehow chosen to be an