The 2007 National Book Award winners have been announced. The winners are:

• Young People's Literature: The Absolutely True Diary of a Part-Time Indian by Sherman Alexie
• Poetry: Time and Materials by Robert Hass
• Nonfiction: Legacy of Ashes: The History of the CIA by Tim Weiner
• Fiction: Tree of Smoke by Denis Johnson

Visit the National Book Foundation website to see a list of all National Book Award Finalists for this year and previous years.