Greatest black novels are those that not only tell the stories of black people but also make a powerful statement about society. They might deal with historical events like slavery as 'Beloved' does. Or they could focus on the relationships within the black community, such as the friendships in 'Sula'. These novels have a unique voice that gives insight into the black experience and can also be relevant to a wider audience in terms of discussing human nature, love, and struggle.
We can define the greatest black novels by several factors. Firstly, their literary merit in terms of writing style, character development, and plot. Secondly, their cultural significance in representing the black culture, traditions, and values. For instance, 'Their Eyes Were Watching God' beautifully captures the black dialect and the southern black culture. Thirdly, their ability to evoke emotions and start important conversations about race, class, and gender. Novels like 'The Color Purple' do this by highlighting the experiences of black women in a patriarchal and racist society.