A person who follows Islam is called a Muslim, which means one who submits to God. Islam has about two billion followers, one in four people on earth, in every country and from every race. Most Muslims are not Arab: the largest Muslim countries are Indonesia, Pakistan, India and Bangladesh.
Islam is built on belief in one God who has no partner, no son and no equal, and on living by His guidance: prayer, charity, fasting, honesty, kindness to parents and neighbours, and justice to all people. Its source is the Quran, which Muslims believe is the word of God, and the example of Prophet Muhammad ﷺ.