Islamism is a way of thinking and living that is based on the teachings of the Muslim religion. It is a way of following the rules and values that are spelled out in the teachings of the Quran, the holy book of Islam. Islamism puts a lot of importance on a person's actions and beliefs. People who support Islamism believe in living according to the rules of Allah and following the teachings of the Quran in everyday life. Islamism can also be thought of as a political movement, since it is often used to try to influence the government and laws of countries. A big part of Islamism is the idea that Allah is the only ruler and laws should be based on his teachings.