Muslims are sinners and in need of the Savior for their sins, just like everyone else. But their theology claims that Jesus was just another prophet and that Christians lied in claiming that He died on the Cross.
The Koran claims that "God has no son." But the Bible clearly states that God does indeed have a son.
John 3:16 "For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life."
In witnessing to Muslims always start with prayer and speak in love. The Muslims are very proud of their heritage. You want to encourage the person to come to know our Creator personally, but without trying to "Americanize" them. That is an important difference! One needs to appeal to their intellects while praying for their souls.
There are a couple of web sites that have Christian books for Arabic
(and they have Josh McDowell's book: More Than a Carpenter
One other site is: http://www.a-c-b.org/
Creation Science information in Arabic: http://www.creationism.org/arabic/
Creation Science information in Farsi (Persian): http://www.creationism.org/farsi/