This book is very interesting reading
Yes. It's about a teenager named Holden who is both childlike and mature at the same time. 
Yes liked on childlike Holden teenager reading this book
Many critics considered him "immature". But it is often difficult to argue with his perspective since it is so relatable.
good argue on perspective immature difficult.
Yes. Also he was very fond of his sister showing he had a soft side even though he had a potty mouth.
yeah good, for showing a soft side
There was a backstory to his character. His brother had passed away which shows he was going through grief. 
Yes, correct but this situation story is very sad
Yes it was. It meant his emotional reactions were high which made this book such an interesting story.
Yes I liked this story and reading this book very interesting