1905, American Tract Society, NYC, 120 pgs; reprint 1981. Zwemer said he wrote this short book because: "I have found no book in English" that details an understanding of the theology of Islam..."in its tremendous and fanatical grasp on the one great truth -- Monotheism." The chapter titles include: (1) The valued of the creed: there is no god but Allah; (2) Allah -- the divine essence; (3) the 99 beautiful names of Allah; (4) Allah's attributes analyzed and examined; (5) the relation of Allah to His world; (6) Mohammedan ideas of the Trinity; (7) Predestination vs. Fatalism; and (8) the Moslem idea of God compared with that of Christianity. A nice brief review of Islam when it was written. There is a nice line-chart that neatly, but briefly, outlines the flow of Islam from its source (Mohammad and the Koran), Mohammad's traditions, and the flow of authority from Mohammad to the Sunni and the Shiahs; along with the pillars of Faith and Practice, and more (need to see it to really appreciate it). Zwemer claims that the Muslim and Christian use of the word "Allah" differs -- that they are not the same Deity. Zwemer presents some analysis of the development of the word: Allah. The author notes the 99 names of Allah (in both Arabic and English), and details in which surah they appear. The author examines the 'attributes' of Allah. Zwemer contends that the Moslem Allah: is every more ready to punish than to reward, to inflict pain than to bestow pleasure, to ruin than to build. Zwemer argued that the Wahabi revival "was nothing else than an attempt to return to primitive Islam and to go back to Mohammed's own teaching. After living in Arabia for over thirteen years, I have no hesitation in saying that...the Wahabi sect is more orthodox (i.e., closer to the Koran and earliest tradition) than any other sect of Islam both in their creed and their practice." (p.69) Zwemer contends that: "orthodox Islam is at one deistic and pantheistic. Theologians and philosophers have pantheistic views of Allah...but the popular thought of Him...is deistic." Zwemer noted that Muslims believe that the purpose of Allah creating hell was to fill it with infidels. (p.72) Zwemer explains how the Quran and Mohammad reject the Christian concept of the Holy Trinity. The author analyses how the Quran sets forth the concept of "Predestination" in Islam theology and how it led to a strong fatalism amongst Muslims. Zwemer maintained that "The Moslem idea of God is conspicuously lacking in the attribute of love" (p.110), and how the Muslim Allah regards love differently from the Christian Allah. While an early book analyzing Islam, still a nice introductory look written by a knowledgeable Christian missionary who studied the Muslims while living in the Middle East.