An insightful book providing a general overview of the Islamic system of belief and worship rituals from a macro-study level. This book was originally written in Arabic as part of a three-set book called Islamic system in economics, politics, and belief doctrins and rituals. The author, Mohamed Al-Mubarak (1912-1982) was one of the reformers of the 20th century who combined deeply rooted Islamic knolwedge with his western education in sociology. The late author introduced this book and the other two parts of his book in the early 1960's. Sicne then, this book has been an essential textbook for all incoming students and in all fields of study in many universities across the middle east as part of establishing a firm foundation in Islam that is beneficial for every Muslim. This book has two main sections: the first talks about A'qeeda (creed or belief) and the second about the main acts of worship in Islam, combining the information about these topics with the general goals and objectives from such information.