40 Rules of Love - The forty rule of love (Paperback, Elif Shafak)

It is about the Persian mystic poet Maulana Jalal-Ud-Din, known as Rumi and his companion Shams Tabrizi. This book explains how Shams transformed a scholar into a Sufi (mystic) through love. More than 750,000 copies of this book were sold in Turkey and France.