I think reading books is getting less popular with children and teenagers because now in 2017 year there are a lot of electronic devices. And children, teenagers mostly uing those devices not for education but just for playing games or watching movies.
I prefer traditional paper books, because I like the smell of the book, I like turning the pages and look at the pictures, not just touching the screen of laptop or clicking on the mouse.
I prefer to read fantastic books. For example ``Harry Potter`` or ``Fantastic Beasts``.