Kashf-ul-Mahjoob, or Kashf al-Mahjub, is the first ever Persian book written on the philosophy and practice of Tasawwuf (Islamic Sufism). The author Hazrat Sayyid Ali bin Usman Hajveri is a highly celebrated Sufi saint of Pakistan, often called Data Ganj Bakhsh. The book was written in Farsi, but has been translated in many other languages. In Urdu alone, there are more than a dozen translations. The presented edition is one of the best Urdu translations by Allama Fazl-ud-Din Gohar, and published by Zia-ul-Quran Publications, Lahore, in 2010.