In case you missed it, the New York Times recently did a nice article about Harper Lee and the impact of her only novel To Kill A Mockingbird:

The recipient of the Pulitzer Prize in 1961, "To Kill a Mockingbird" remains the only book Ms. Lee has written. It is difficult to overestimate the sustained power of the novel or the reverence with which Ms. Lee is treated here: it is not uncommon to find live staged versions of the story, hear of someone who has devoted his life to playing Atticus Finch in road shows, or meet children named Scout or ones named after the author herself.