The rising of e-books, one of popular sought-after gadgets, is a reason why the popularity of paper books decreased. Reading only e-books would certainly aid ecological benefit and unlimited choice but there will also be some drawbacks like being harmful for health or not so sensual feelings.
One evident benefit to reading e-books is that it would be unlimited choice. In other words, possessing e-books is kind of having a world literature at hand. So it is not question ‘what to read? ’. Another reason is that it would be ecological benefit. With all people reading e-books, there would be ecological dividend like no trees will be chopped anymore. Definitely, it is good news for everyone alive.
On the other hand, there are obvious disadvantages to reading only e-books. Firstly, it would mean that people, who read e-books a lot, may have decreasing of immunity. The e-books, being one of the electronic devices, may be harmful for eyesight. This is why spending a lot of time by reading e-books is not good idea. Secondly, it is not the same feeling between reading e-books and reading paper books. While reading paper books the senses will be more natural. Because nothing can compare with spell of real books.
In conclusion while there are plus points of reading e-book, there are also some disadvantages. There are two ways of reading books: e-books and paper books. Either is enthralling hobby. Certainly, modern technology is a good step for future, but mental and physically health have to be prioritised for everyone. 
The rising of e-books, one of popular sought-after gadgets, is a reason why the popularity of paper  
books
 decreased.  
Reading
  only
 e-books would  
certainly
 aid ecological benefit and unlimited choice  
but
 there will  
also
 be  
some
 drawbacks like being harmful for health or not  
so
 sensual feelings.
One evident benefit to  
reading
 e-books is that it would  
be unlimited
 choice.  
In other words
, possessing e-books is kind of having a world literature at hand.  
So
 it is not question ‘what to read? ’. Another reason is that it would be ecological benefit. With all  
people
  reading
 e-books, there would be ecological dividend like no trees will  
be chopped
 anymore. Definitely, it is  
good
 news for everyone alive. 
On the other hand
, there are obvious disadvantages to  
reading
  only
 e-books.  
Firstly
, it would mean that  
people
, who read e-books a lot, may have decreasing of immunity. The e-books, being one of the electronic devices, may be harmful for eyesight. This is why spending  
a lot of
 time by  
reading
 e-books is not  
good
  idea
.  
Secondly
, it is not the same feeling between  
reading
 e-books and  
reading
 paper  
books
.  
While
  reading
 paper  
books
 the senses will be more natural.  
Because
 nothing can compare with spell of real books. 
In conclusion
 while there are plus points of  
reading
 e-book, there are  
also
  some
 disadvantages. There are two ways of  
reading
  books
: e-books and paper  
books
. Either is enthralling hobby.  
Certainly
, modern technology is a  
good
 step for future,  
but
 mental and  
physically
 health  
have to
 be  
prioritised
 for everyone.