Social media and the media are rife with numerous doubts promoted by atheists and ill-intentioned individuals with the aim of turning people away from their religion. They use written, audio, and visual media to do so, exploiting the lack of Islamic knowledge and the weak religious conscience of many young people. Although most of the doubts are contrived and do not amount to a challenge to the Islamic faith, many young people have been seduced and immersed in the swamp of atheism. In this book, I have attempted to present evidence of the authenticity of Islam, while establishing the facts of Islam and demonstrating its compatibility with reason, science, and logic. I seek to strengthen certainty among young people in general, and to make them feel the greatness of this religion.