Personal pronouns indicate a singular or plural noun, which person the pronoun is, the gender and whether it is naming, possessive or objective. Often all this information is stated in a simple pronoun, such as his or yours. The pronoun "his" implies a singular, third person, possessive, male noun.
By adding the suffix "-self" or "-selves" to a personal pronoun, it becomes reflexive, such as himself. A reflexive pronoun can be used to intensify the noun it refers to; in this case it is called an intensive pronoun.
Providing further information about a noun, a relative pronoun introduces an adjective clause. Andrew Pudewa, creator of the Excellence in Writing system, dubs this a "who/which clause." Example: Bryce, who loves the water, just learned to wake board. Example: The herd of elephants, which was led by the matriarch, tramped quietly through the savanna. Whose, whom, that or what can also be used as relative pronouns.
Most pronouns refer to an antecedent, the named noun in a sentence. Indefinite pronouns are one exception to the rule. For example: Nobody cleaned the table. In this sentence nobody is a pronoun, but the noun it refers to is not stated.
A pronoun used to show another noun without naming it is demonstrative. Examples include this, that, these and those.