This document provides an introduction to Islam, including key beliefs and practices. It explains that Islam is the fastest growing religion worldwide with over 1.2 billion followers, including a growing population in the US. The five pillars of Islam are outlined as the basic guidelines for Muslims: profession of faith, ritual worship, alms, fasting, and pilgrimage. The different branches of Islam like Sunni and Shia are also mentioned. Violence and terrorism are stated to not be supported by the Quran. The origins of Islam and the life of the prophet Muhammad are briefly described. Locations where Islam is commonly practiced and the basic design of mosques are outlined.