Neither, EVER!! I am a reading teacher and learning to read is a tactile experience. Early readers need to be able to develop a relationship with books to become reading fans. There have been recent studies that show electronic readers slow your reading time down and that effect comprehension as well. On a rainy day when I have a fire in the fireplace and a hot cup of tea curling up with a cozy electronic reader just doesn't cut it. In addition no book that I have ever experienced has run out of battery power, had to be recharged or broke it's screen.