Anna Karenina, authored by Leo Tolstoy, is a sweeping 19th-century romance novel set in Imperial Russia. The story follows the titular character, Anna Karenina, as she embarks on a passionate affair that threatens to destroy her marriage and social standing. Tolstoy's novel explores themes of love, morality, and the consequences of societal norms. With its richly drawn characters and intricate plot, Anna Karenina is considered one of the greatest works of literature and a must-read for fans of 19th-century romance.