That's very interesting and surprising but logical, audio books can serve as a very relaxing source
of entertainment after a hard days work heading back home on the train or during unscheduled recess in the morning at school when the library hasnt opened yet, it's also a good way
of winding down when the
children have been put to bed and you just need an
hour by yourself in the couch without a noisy tv
with advertisements interrupting the welcome calm
of evening.