"The Green Hat" is a novel written by Zhang Ailing, a prominent Chinese author known for her poignant storytelling. The book, set in 1930s Shanghai, explores themes of love, betrayal, and the complexities of human relationships. It follows the life of a young woman navigating her emotions and societal expectations in a rapidly changing world. The title refers to a traditional Chinese symbol of infidelity, where a man whose wife is unfaithful is said to wear a green hat. This motif serves as a backdrop for the characters' struggles with loyalty and desire, making the narrative both engaging and thought-provoking.