What are the two kinds of adjectives?

There are three kinds of adjectives:

1. Common adjectives 2. Demonstrative adjectives 3. Proper adjectives

1. Common adjectives are regular adjectives.

blue skies, hairy dog, young man

2. Demonstrative adjectives always answer the question "Which One?".

That, these, this and those are demonstrative adjectives which answers the question, "Which One".

I want those shoes. Don't stare at that man. This test was easy.

3. Proper adjectives are always capitalized because they describe a proper noun.

Italian is the proper adjective of Italy, Mexicanis the proper adjective of Mexico