In the extraordinarily beautiful and readable book "Nation of Love" written by "Elif Shafak", 40 rules of Shams Tabrizi are mentioned. This book, which tells the story of Shams Tabrizi and his acquaintance with Rumi, introduces one of the rules of Sufism and Sufis in each part. Forty Rules of Shams Tabrizi, Forty Laws of the Nation of Love, Forty Rules of Love and Forty Must Must Loves are the titles of Alif Shafak's main book entitled "The Forty Rules of Love".