You can actually buy a book called islam for Dummies, or as it 's more commonly known , the Quran
Are you making fun of Islamic relgious texts?
The book is wrong and it's fraud. I mean if you have a religion that promotes violence, terrorism and other notions than it is not a good one. It is a bad one.
Your words suggest that someone has told you that Islam openly promotes violence, and thankfully, this is not true.  I suggest that you either read a short Wikipedia entry, or watch a documentary about the teachings of the Quran, and you will find that Islamic religious texts preach peace and non-violence to followers.