Articles are not used:

1.       before the name of a person:

Ø  Example: I am a fan of Michael Jackson. (NOT: I am a fan of the Michael Jackson)

2.       before the name of a place, town, country, street, or road.

Ø  Example: Barcelona is a beautiful city. (NOT: The Barcelona is a beautiful city.)

3.       before names of materials.

Ø  Example: Gold is found in Australia. (NOT: The gold is found in Australia.)

4.       before abstract nouns used in a general sense.

Ø  Example: You cannot buy happiness. (NOT: You cannot a/the happiness.)