Like Christianity and Judaism Islam believes in one god. The god of Abraham. They believe in the same god but in different things.
The Koran is the holy book for Islam. ThenKoran is much like the bible and the TeNaKh but about different things.
One of Islams key beliefs is Moses. Moses who carried the ten commandments by god up to the mountain.
The Muslims also believe in the 5 pillars. The 5 pillars are only one god, praying for only one god, giving to the poor, fasting, and pilgrimage.
The Islams celebrate Ramadan. Ramadan is the ninth month of the islamic moon calendar.
The islams take a trip to Mecca where they celebrate annual Hajj. During annual Hajj millions of people circle and walk around the Kabah.