title_body: Screen protection for eReader Is it useful or advisable to get screen protection for eReader?
  Also does anti-reflective layer makes any good or bad difference with the eInk screen?
upvoted_answer: Eink devices usually don't have screens with a smooth surface, they have a slight roughness, in order to simulate the look and feel of printed paper and to prevent unwanted light reflections on the surface during reading.
  
  Applying a protective film over it will remove this feature; I don't know if such films with a non-smooth surface are in existance, but even in this case I suppose it won't adhere well to the ereader surface, causing unwanted blurriness.
  
  The best option to protect an eink device, in my opinion, would be to use something like a sleeve or a full cover.