Which of these books was written by Harper Lee?

To Kill a Mockingbird, a novel by American author Harper Lee was published in 1960. Enormously popular, it was translated into some 40 languages, sold more than 40 million copies worldwide, and is one of the most-assigned novels in American schools. In 1961 it won a Pulitzer Prize. The novel was praised for its sensitive treatment of a child’s awakening to racism and prejudice in the American South.

Source: Britannica