Few Muslims realise that there are several Korans in circulation in the Islamic world, with textual variations whose significance, extent, and meaning have never been properly examined. This work contains articles that address the history, linguistics, and religious implications of these not-trifling variants in Islam's sacred book.

For many millions of Muslims there is one and only one true Koran that offers the word of Allah to the faithful. Few Muslims realize, however, that there are several Korans in circulation in the Islamic world, with textual variations whose significance, extent, and meaning have never been properly examined. The author of Virgins? What Virgins? and Why I Am Not a Muslim has here assembled important scholarly articles that address the history, linguistics, and religious implications of these significant variants in Islam's sacred book, which call into question the claim of its status as the divinely revealed and inerrant word of the Muslim god. This work includes valuable charts that list the many textual variants found in Korans available in the Islamic world, along with remarks on their significance.

"Despite the text's extraordinary significance, the origins of the Koran are obscure in the extreme. Much like earlier compilations edited by Ibn Warraq, Which Koran? brings together a wealth of important European scholarship, much of which is translated into English for the first time. It will be of great interest not only to specialists in early Arabic and Koranic studies but also to students of early Islam and those interested in scripture more generally."
-Chase Robinson, formerly professor of Islamic history at the University of Oxford, now Distinguished Professor of History and provost of the Graduate Center of the City University of New York, and author of Abd al-Malik, Islamic Historiography, and Empire and Elites after the Muslim Conquest