The Quran is the holy scripture of a religion that has changed the world. It contains the speech of God unto Muhammad the prophet, and through him unto his entire generation -- Idolatrous Arabs, Jews and Christians. This book delineates the major issues which are discovered as one reads through the Quran: How God was revealed to the prophet; in what manner he speaks to him; how he guides the prophet to enlarge the community of believers and face his opponents; how he defines the community of believers; what are the moral and ethical codes which he lays down for them; what is the image of God; what is the religion of Islam which God calls the people to follow; what are the practical ways for expressing the belief in the unity of God; the Abrahamic faith to which one must adhere so as to become a true Muslim. The present book also reviews God's polemics with Jews, Christians and idolaters; the status of the scriptures of the Jews and the Christians; the conditions of war and peace with the unbelievers at large; the descriptions of the resurrection and the day of judgment, as well the colorful descriptions of paradise and hell.