The book discusses atheism, the concept of denial of God, and why people become atheists. Polytheism, the worship of multiple Gods, is discussed and compared with monotheism, the worship of one God. The book discusses the myth of the cross and provides evidence from the Bible that Jesus was not crucified. The book argues that all heavenly religions, from Noah to Muhammad, can be called Islamic. Moses and Jesus were also Muslims because they submitted themselves to God. Islam means submission, and all prophets of God were Muslims. The Quran challenged all mankind to come together and help each other produce the equivalent of this Quran. The Quran has also been preserved from the very day it was revealed until now, and it has not been changed, which is also evidence that the Quran is a revelation from God. Islam is not a new religion. It has five pillars of faith, also found in the Bible. This book shows that Muhammad is the last Prophet to all mankind. So, all people must believe in God and His Messenger, the unlettered Prophet Muhammad, to attain salvation hereafter. Prophet Muhammad has confirmed that Jesus, during his second coming, will follow Islam.