A book covering the following topics: Tawhid and its categories; love for Allah; Shirk (polytheism)—its dire consequences and ways to avoid it; Jahiliyyah (pre-Islamic ignorance), sin, and means of deliverance; matters that nullify faith and how to safeguard it; practices contrary to Tawhid, their gravity, and guidance toward the true path; love for the Messenger; and Bid'ah (religious innovation)—the consequences for its practitioners and the path to salvation.