Over 200 common mistakes widespread among the Muslims today are discussed in a simple format by Shaykh Sāliḥ Āl Shaykh—Minister of Islamic Affairs. Each mistake is numbered and accompanied by a remedy from the Qur'ān and Sunnah.

Included in this book are mistakes related to: ‘aqīdah and tawḥīd, innovations, jinn, fortune-tellers, poetry, birthdays, holidays, purification, prayer, du‘ā', Jumu‘ah, zakāh, fasting, Ḥajj, business transactions, sports and recreation, travel and vacation, movies, books, music, relatives, marriage, weddings, parties and social gatherings, men’s attire, women’s attire, hair and nails, photography, family matters, children, polygyny, home decor, food and drink, funerals, mourning, da’wah, and many more!