The Qur'an is the book of God as revealed to the Prophet Muhammad, peace be on him and his progeny. The purpose of the Qur'an is to guide humankind to God and to the correct way of living life. The Qur'an is miraculous from many dimensions. For example, no human being can write such perfect guidance on so many subjects. The language used in the Qur'an is of a supreme nature and has the unique quality of conveying oceans of meaning in simple but powerful words. From the time it was revealed, the Qur'an remains in its original, pure, and unaltered form. The topics of the Qur'an include stories of past prophets and moral lessons learned from them descriptions of the afterlife, commentary on the events during the times of early Muslims, practical code of daily conduct, nobility of character of the Prophet Muhammad and his family, and spiritual and metaphorical appeals to the human intellect to know God in the world outside and within the soul. Muslims read passages from the Qur'an in their daily prayers.
See the following for more information.
http://al-islam.org/quran/
http://al-islam.org/quraninislam/
http://al-islam.org/topical.php?cat=72
http://al-islam.org/topical.php?cat=198
http://al-islam.org/topical.php?cat=197
The Ahlul Bayt DILP / www.Al-Islam.org