Common, why didn't you answer your own question?

Fiction - "To Kill A Mockingbird" by Harper Lee. I love everything about it, the characters, the story, the narrative of Scout, but mostly the atmosphere. You can smell summer by the end of the first page.

Nonfiction - "The Hiding Place" by Corrie ten Boom. This is a true story that is extraordinarily well-told. My favorite part: the author's sister insists on thanking God for the fleas they find infesting the building they sleep in while in a concentration camp. The author can thank God for many things, but she draws the line at fleas until she finds out what a true blessing they actually are. An amazing story.

Honorable mention - "The Dog Who Wouldn't Be" by Farley Mowat.

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Order without liberty and liberty without order are equally destructive. - Theodore Roosevelt