Provide your readers with this essential guidebook about Islam and its role in society. As of 2015, approximately 1.8 billion people identified as Muslim, 24 percent of the global population. Islam's adherents are found throughout the world, but some question whether its values and practices are at odds with those of Western nations, with particular concerns about Muslim extremism and its connection to terrorism. This has prompted attempts to control or even prevent Muslims from entering Western countries. As the global Muslim population continues to rise and immigration increases, questions about the role of Islam and its adherents in society have become increasingly urgent.