This document provides information about the articles "a", "an", and "the" in English grammar. It discusses the rules for using the indefinite articles "a" and "an", including using "a" before consonant sounds and "an" before vowel sounds. It also covers exceptions involving words like "hour" or "herb". The document then discusses the definite article "the", explaining when it is used to refer to something specific or previously mentioned. It provides many examples of the different uses of "the". The document concludes by listing some exceptions when "the" is not used, such as with names of languages, meals, or people.