This book, 'Glad Tidings', explains that Islam is the true faith that is acceptable to God and that following Islam is a great favour God bestows only on those who willingly accept divine guidance. The author explains the nature of Islam, showing the error of those who suggest that it is a religion only for Arabs, or a religion associated with backwardness or aggression. He also explains that the actions of some misguided Muslims cannot be attributed to Islam. The book highlights the main features of Islam and shows how beneficial these are to mankind. It tells everyone who embraces Islam that God erases all their past sins and errors, as the Prophet makes clear, "Islam erases all past sins.