The Arabic Holy Book is known as the KORAN, which is a five-letter word. The KORAN is the central religious text of Islam, believed to be the word of God revealed to the Prophet Muhammad over a period of 23 years. It contains 114 chapters and is divided into sections called suras. The KORAN is considered by Muslims to be the infallible word of God and is used as a source of guidance in all aspects of life.