Max Rodenbeck in the New York Times Book Review:
These are rough times for Islam. It is not simply that frictions have intensified lately between Muslims and followers of other faiths. There is trouble, and perhaps even greater trouble, brewing inside the Abode of Peace itself, the notional Islamic ummah or nation that comprises a fifth of humanity.
News reports reveal glimpses of such trouble — for instance, in the form of flaring strife between Sunni and Shiite Muslims in places like Iraq and Pakistan. Yet the greater tensions, while similarly rooted in the distant past, are less visible to the wider world. The rapid expansion of literacy among Muslims in the past half-century, and of access to new means of communication in the last decade, have created a tremendous momentum for change. Furious debates rage on the Internet, for example, about issues like the true meaning of jihad, or how to interpret and apply Islamic law, or how Muslim minorities should engage with the societies they live in.
What is unfolding, Reza Aslan argues in his wise and passionate book, ”No god but God,” is nothing less than a struggle over who will ultimately define the sweeping ”Islamic Reformation” that he believes is already well under way across much of the Muslim world.