"کلیدر" is a famous Persian novel written by محمود دولت‌آبادی, first published in 1984. The story is set in a rural village in Iran and follows the life of a family over several generations, exploring themes of love, loss, and the struggles of rural life. The novel is known for its rich descriptions and deep character development. The title "کلیدر" translates to "The Key" in English, symbolizing the unlocking of personal and social issues faced by the characters. The book has received critical acclaim and is considered a significant work in modern Persian literature, reflecting the cultural and historical context of Iran.