Islam is literally Peace, Submission to God. Originating from Prophet Muhammad in the 6th century of the Christian Era - and, naturally, in the first century if the Muslim Era - it is extremely simple in its principles:
- Belief in one God
- Belief in accountability (paradise and hell)
- Belief in good and bad
- Belief in divine books
- Belief in prophets.
Besides, the revealed book of Islam, the Quran, talks to all people, including Christians, Jews and other non-Muslims. The author is none other than God. www.islamonline.com is an interesting starting point for hearing from Muslims.
It is not very wise to try to learn Islam from non-Muslims. It is better to have a view from inside.