Thank you for submitting your homework. you got nice job here.. But please take notes of my corrections. Thank you.. See you on Friday!^__^

Corrections:

I like reading books.

** You're sentence is correct but keep in mind that you need to write  in capital the first letter in your sentence.

It is fun. -correct

I think it is important to many people because it helps them think about the books and helps people's brain be more smart, and work faster.

Correct: It is important to a lot of people because it helps them to think about the books, helps them to be smarter and makes their brain works faster.

** Instead of using "many" use  "a lot" it is appropriate to your sentence.

** The word "to" is necessary for this sentence to mean to give reason for doing something.

** Using a lot of "and" in your sentence cause redundancy use coma instead.

I think that's why people say to their children to read.