Oh Boy is an English translated book by Zain ABD which was originally written in Arabic Language by a very sufist scholar of 11th Century CE. The book is highly-recommendable for those who are interested in Islamic Sufism including deep ideology and theology of the Holy religion, Islam. One of his advanced students asked him some questions, so he wrote the book in his answer, as the student said: “Even though the writings of the Shaikh like ‘Ihyaa Uloom Ad-Deen’ and others contain the answer to my questions, yet my purpose is that the Shaikh should write my requirements in some sheets those will remain with me for the period of my life, and I will work according to what will be in them for the period of my life, if Allah the Exalted wills.”