This textbook is intended for teachers who, based on the material presented, will be able to conduct elective classes in the subject “Islamic Studies”. The manual can be used in teaching religious studies, the history of religions and other social science disciplines, as well as as additional material when studying religious subjects in higher educational institutions. The manual outlines the basic principles of Islam, its history, creeds and rituals, culture and traditions, moral values , attitude towards various social problems. A separate chapter is devoted to the history of Islam in Russia. In the second edition, noted typos and technical errors have been corrected.