stick on/in a book

[hoki]

Hello, everyone.


I would like to know which of the following is correct.
1.stick the worksheet on the book
2.stick the worksheet in the book


I want to ask my students to stick the worksheet on a new page of their books.

Thank you

 

[PaulQ]

On the book -> on the outer surface of the book
In the book -> inside the book

 

[Keith Bradford]

This post-it note is stuck on the book:

This one is stuck in the book:

 

[hoki]

Thank you! The illustrations are clear.

This post-it note is stuck on the book:

This one is stuck in the book:

!