Here are entered works on the medieval civilization of the Middle East, North Africa and Arab Spain collectively. Works on the civilization of the Arab countries for all periods, or for the pre-Islamic or modern periods only, are entered under Civilization, Arab. Works on the civilization of the Islamic countries for all periods, or for the pre-Islamic or modern periods only, as well as non-Islamic culture during the medieval period, are entered under Islamic countries--Civilization. Modern works of a predominantly religious nature discussing 20th and 21st century problems and prospects of Islam and desirable changes, including works that advocate a civilization or society based on the teachings of Islam, are entered under Islam--20th century and/or Islam--21st century.
Here are entered works on the group of countries in which the majority of the people are Muslims or in which Islam is the established religion. Works on the community of believers in Islam are entered under Muslims. Works on the religion of which Muhammad is the prophet are entered under Islam. Works on the cultural system or civilization erected on the foundation of the religion Islam are entered under specific headings according to period covered, e.g. Islamic civilization (for the medieval period); Islamic countries--Civilization (for the modern period and general works).