Common Noun | Proper Noun
------- | --------
building | Empire State Building
city | Paris
book | "To Kill a Mockingbird"
movie | "The Godfather"
car | Ford Mustang
painting | "Mona Lisa"
monument | Statue of Liberty
island | Manhattan
mountain | Mount Everest
Explanation:
* Common nouns are general names for things (e.g., building, city, book). They are not capitalized.
* Proper nouns are specific names for individual people, places, or things. They are always capitalized.
Let me know if you would like more examples or have any other questions!