Islam is a religion that is based on the teachings of the prophet Mohammad and the principles and laws laid out in the Quran. Islam quotes show that many people do not understand this religion, and that Muslims who follow Islam are often viewed with suspicion because of extremists who commit acts of violence in the name of this religion. There are two main groups of people who follow Islam, and these are called Sunni Muslims and Shia Muslims. Both groups worship the god of Islam, called Allah, in special places of worship which are called mosques. Islam teaches that there is only one true god, and that Mohammad was the prophet who taught the word of Allah. Islam is typically a male dominated religion, and many Muslim sects force women and girls to cover their entire bodies for modesty.