This book, takes as reference, books written by renowned orientalist scholars, whose names are mentioned inside, specialized in ancient Arabic language as well as numerous archaeological discoveries. With this work, I try clearly to explain, why the Muslim Allah is the moon-god, therefore an idol, worshiped by the pre-Islamic Arab tribes at the time of Muhammad, and compared forcefully, by the alleged prophet, to the biblical God. In fact, all the ceremonies and rites that are currently being fulfilled by Muslims are, without exception, exactly the same rites and ceremonies, performed by pre-Islamic Arab populations to honor the idols of the Kaaba including the moon-god, Allah. I also write why the Kaaba could not have been built by Abraham. I explain why, since the Muslim Allah is the moon-god, thus an idol, cannot have dictated the Quran which was, therefore, conceived and written by men. In this book I explain why the Ramadan cannot have been ordained by any divine being. In this volume I point out, that, according to some of the greatest scholars of the Islamic religion and the Arabic language, the words "Islam" and "Muslim" are not words that existed at the time of Muhammad, so they could not have been written in the Quran and also that the Quran is a book written in a period far away from the alleged prophet lifetime. I wrote two chapters, to point out some senseless verses as well as different contradictions and assertions that, from what they declare, must necessarily come from human minds, always to show that Allah is the moon-god, an idol. I point out that in the Quran is indirectly asserted that their moon-god, Allah cannot be neither omnipotent nor omniscient. In this work I highlight two surah that clearly prove that the supposed Muslim holy book cannot come anywhere other than human minds and that therefore their god Allah does not exist. In this volume I cited the title of a book, written by an Iranian scholar, which points out how the Quran is a forgery. I also wrote clearly that not even Muslims know who should have dictated the Quran to Muhammad. I expose, in this volume, the reasons why the abrogating and the abrogated, the statement that later verses should repeal antecedent verses dealing with the same argument, cannot exist, whatever Muslims declare. I clearly illustrate why there can be no Muslim exegetes trying to explain incomprehensible Quranic surah. I negate, as clearly as possible, that their moon-god, Allah, a non-existent idol, could have sent something to anyone to confirm the Scriptures. I have also tried to explain the reason that clearly indicates, as written in the Quran, that their god Allah can be neither omniscient nor omnipotent, in opposition to what Muslims declare. I point out why the biblical God could not have nothing do with the self-appointed messenger. According to researches accomplished by scholars, as well as archeological discoveries, it is known now, that the self-appointed messenger, was never mentioned until 60 years after his death. I rebut, in this work of mine, the fact that God, according to what the alleged prophet wrote in the Quran, could forget and make mistakes, while he (the self-appointed messenger), remembered everything and apparently could not make mistakes. I also outlined, in my book, the reason why all the hadiths can be refuted and how.