I wouldn't give Ray Kurzweil (as recommended from another user) so much attention as he is the most well known figure in the scene. Rather I'd look for authors who have an unusual approach to this topic. Like the author here, who talks about AI myths:
Human minds are societies of minds, in the words of Marvin Minsky. We run on ecosystems of thinking. We contain multiple species of cognition that do many types of thinking: deduction, induction, symbolic reasoning, emotional intelligence, spacial logic, short-term memory, and long-term memory. The entire nervous system in our gut is also a type of brain with its own mode of cognition. We don’t really think with just our brain; rather, we think with our whole bodies.