This document discusses articles in the English language. It begins by explaining that articles are a type of determiner and introduce nouns. While articles may seem simple, they can be difficult for some language learners. It then defines articles as words used before nouns to indicate definiteness or specificity. The main types of articles are indefinite (a, an) and definite (the). The document provides rules and examples for using indefinite and definite articles in English. It concludes by noting some situations where articles are not used.