Islam is the monotheistic religion articulated by the Qur’an, a text considered by its adherents to be the verbatim word of God (Arabic: الله Allāh), and by the teachings and normative example (called the Sunnah and composed of Hadith) of Muhammad, considered by them to be the last prophet of God. An adherent of Islam is called a Muslim.
The core beliefs of Islam are that there is only one God – unitary and beyond comprehension – and that Muhammad is His prophet, the last in a series of prophets beginning with Adam. The Qur’an is upheld as the eternal, literal word of God, and revelations to earlier prophets, as seen in the Jewish Torah and Christian Gospels, are believed to have become distorted by human intervention. Muslims believe that the Qur’an was revealed to Muhammad through the angel Gabriel, and belief in angels as God’s servants is part of the Islamic tradition. Belief in the Day of Judgment, when all people will undergo bodily resurrection and be judged by God, is another core tenet. While Sunni and Shi’a Muslims adhere to these basic beliefs, Shi’a also believe in the Imamate, the line of infallible spiritual and political leaders who succeeded Muhammad, beginning with his cousin and son-in-law, Ali
Muslims believe that God is one and incomparable and the purpose of existence is to worship God. Muslims also believe that Islam is the complete and universal version of a primordial faith that was revealed at many times and places before, including through Abraham, Moses and Jesus, whom they consider prophets. Muslims maintain that previous messages and revelations have been partially changed or corrupted over time, but consider the Qur'an to be both the unaltered and the final revelation of God. Religious concepts and practices include the five pillars of Islam, which are basic concepts and obligatory acts of worship, and following Islamic law, which touches on virtually every aspect of life and society, providing guidance on multifarious topics from banking and welfare, to warfare and the environment.
Created in 1995, "The Truth About Islam" has been called the "best, short introduction to Islam" — to read, click on picture.