Muhammad, the prophet in Islam, wrote the Koran. That is: he wrote it down. The book itself is thought by Muslims to be written by God, also known as Allah, Himself. It is HIS final revelation, or so it is said.
Muhammad started writing the Koran after a vision in 610 A.D. He continued adding texts to it for 23 years till he died in 632 A.D.
The Quran is particularly strong in praise to God. See for instance: http://www.katinkahesselink.net/sufi/quran.html