Anwar Sheikh is a pakistani author who moved to England and eventually gave up Islam after studying it in detail.
His works are very thought provoking and are a must read.
Here is one of his books which is available free on the internet,
"Since Prophethood seeks to elevate a Prophet at the expense of God, it has, obviously, nothing to do with God or guidance. It is just a political device of the Middle Eastern origin, which enables its operator to achieve his ambitions under the pretence of spirituality. With a view to bridling the curious human mind, the doctrine of Prophethood discourages free will, which is the fountain of free-thinking, enquiry and social progress. Instead, it imposes complete hegemony of fate on man to drive him as if he were an ass."
Revelation, Imagination...or Hallucination?
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