Yes but they are not holy books, they are books purporting to report certain events historically pertaining to good and evil. All are flawed, all are political, of all the Johnny come lately is the Q'ran which is a plagirisation with a bit of junket here and there. Mohammed's life is not the life of a 'prophet'..and his thoughts are not particularly original or "God like" other than in the perversity of "God". in fact there probably never were any prophets other than deluded humans. God is presented as an absurdity by people for whom the confusion of population by the the absurd is profitable. Islam exits old testament with Abraham but any religion which invoked expansionism, execution,disfigurement and brutality, infliction of will, war, defamation and denial of free will is an absurdity, an insult to "God" and simply exists to empower the useless and the weak to make the strong rich and the politicians grandiose. Take your pick, of three religions eminating from the one Jewish and thus Egyptian and Babylonin root only one has mollified itself in the last 100 years and it starts with "C".The other two are locked into the ignorence of neanderthall behaviour.Read the Q'ran upways upside down right to left and left to right and you still will not get the message,same with the Torah, that singularly perfect message of how to live in peace and harmony only came from Jesus, the rest are pathetic frauds who did well !!.
Cheers