The Critical Qur'an, in contrast, makes clear the passages that are used to incite violence. Historian and Islamic scholar Robert Spencer elucidates the Qur'anic text with extensive references to the principal tafsir, or commentaries, that mainstream Muslims use today to understand the Qur'an, showing how interpretations that sanction violence are unfortunately not outliers, but central in Islamic theology.The Critical Qur'an is the Islamic counterpart to numerous critical and skeptical editions ofthe Bible that have appeared over the last century and more. It is the one edition of Islam's book that doesn't shy away from elucidating why the holy book of Islam is so frequently quoted and referred to with reverence by people who commit and/or justify acts of violence. It is a basic resource for everyone who wishes to understand the persistent phenomenon of Islamic terrorism, and the peculiar provenance of this most provocative book.