This article highlights the basic tenets and beliefs in Islam. Different people have different ideas and impressions about Islam due to existing world conditions. Islam is a continuation of monotheistic belief and was preached by Prophet Muhammad (p.b.u.h.*), who was born in Arabia in 570 A.D. Although he lacked formal education, he started preaching Islam after receiving divine revelation at the age of 40 through the angel Gabriel. The revelation, which took 23 years to complete, is the Holy Quran, and it still exists in its original Arabic text. Translations are available in different languages of the world along side the original Arabic.