Pronouns stand in place of nouns. They can be personal pronouns standing for people (for example, he, she, you) or impersonal pronouns that stand for things (for example, it, those). Pronouns can also be subjective case, which means they are the subject of the sentence (for example, I want to write effectively; or You are reading about writing). They can be objective case, or the object of the sentence (for example, This material interests you; or I am pleased to know about it). Also, pronouns can denote possession (for example, Your understanding pleases me; or My reading of the novel captures their interest).