Book excerpt: Muhammad and the People of Book by Sahaja Carimokam asks the question, what was the nature of Muhammad’s relationship to non-Muslims, particularly Jews and Christians, and how did it change over time? This work is based on a chronological reading of the chapters of the Qur’an supplemented with Muslim commentary literature and biographical materials on the life of Muhammad. Carimokam traces Muhammad’s evolving religious viewpoint based on his borrowings of primarily Jewish and some Christian traditional/apocryphal materials. He shows how Muhammad’s inaccurate and anachronistic rendition of Jewish traditional literature ensured that the Jews would reject him as a Prophet. This rejection lead to his ultimatum to the Jews early in the Medinan period of the Qur’an and culminated with his call to Jihad against all non-Muslims, including those Jews and Christians who refused to acknowledge his Prophethood. The origins of takfir, declaring Muslims to be non-Muslims, are considered. Comparisons are made of moderate and traditional interpreters of the Qur’an. Historical-critical issues regarding the background provided by Muslim historical propaganda is considered in one chapter. The book concludes with a controversial issue for the interpretation of Islamic law in the 21st century based on the actual canonical practices of Muhammad.