Those adjectives which refer to the nouns used immediately after them are called the Demonstrative Adjectives.
Following are some examples:
I have read this book.
I want to buy this pen.
I have sold that car.
I like these pictures.
See the snow on those mountains.
He is the former president of the association.
I love both wine and beer, but I love the latter the most.
Go and sit on that chair.
I bought these vegetables for the dinner.
Where are those notes I gave to you yesterday.