The Holy Quran is the central religious text of Islam, which Muslims believe to be a revelation from God (Allah). It is widely considered to be the finest piece of literature in the Arabic language. Muslims believe that the Quran should be the primary source of guidance for Muslims, even if they are not religious, and that it is the only book that God has revealed to mankind.

The Quran is divided into chapters (surahs), which are then divided into verses (ayahs). Each surah is a poem that tells a story, has a theme, and has a unique style and structure. The Quran has different themes that it explores, such as the origins of mankind, the origins of the universe, the origins of Islam, the Prophet's (s)'s life, the trials and triumphs of the Prophet, and the consequences of his actions. The Quran also deals with issues such as the importance of the Quran, the truthfulness of God, the existence of God, the attributes of God, the miracles of God, and the messenger and the mission of the messenger.