This is the fourth book of a series of 4 primarily designed for high school (secondary) school students (ages 12-18). It focuses on four areas of Islamic knowledge: Aqeedah, Tafseer, Hadeeth and Fiqh and is presented in simple language. It is also suitable for new-Muslims and adults seeking an easy explanation of the basic areas of Islamic disciplines. All texts are supported by evidence from the Quran and authentic hadiths.