Fascinating book I am reading.  Why I Am Not a Muslim, a book written by Ibn Warraq, is a critique of Islam and the Qur’an. He argues that Islam, according to its sources, is intolerant of other religions and values, and that it will continue to suppress freedom of speech and justice as long as nobody

Ibn Warraq – Why I Am Not a Muslim (Pdf – 2.6MB)

He argues that Islam suppressed art, music, poetry, based on the sayings of Prophet Muhammad.  It justified the murder of anyone that criticized or mocked its Prophet.  It suppressed civil discourse and criticism against Muhammad.

References:

• Ibn Warraq Why I am Not Muslim (Wikipedia)
• Original download link for PDF Book
• Original publisher page – Prometheus books