To Kill a Mockingbird, novel by American author Harper Lee, published in 1960. - Enormously popular, it was translated into some 40 languages, sold more than 30 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.