Reddit reviews Major Themes of the Qur'an: Second Edition

As far as Islam goes I'd recommend Karen Armstrong's Islam or Muhammad, or Reza Aslan's No God but God. Slightly more academic is Carl Ernst's How to Read the Qur'an, Michael Sells' Approaching the Qur'an, and Fazlur Rahman's Major Themes of the Qur'an.

If you're looking for physical copies of his books I would recommend getting these ones off of Amazon:

• Major Themes of the Qur'an
  
  
• Islam
  
  
• Islam and Modernity: Transformation of an Intellectual Tradition
  
  If you don't feel like doing that much reading, here's an analysis of his work: Source