Types of Pronouns
Pronouns can be divided into numerous categories including:

Indefinite pronouns – those referring to one or more unspecified objects, beings, or places
Personal pronouns – those associated with a certain person, thing, or group; all except you have distinct forms that indicate singular or plural number
Reflexive pronouns – those preceded by the adverb, adjective, pronoun, or noun to which they refer, and ending in –self or –selves
Demonstrative pronouns – those used to point to something specific within a sentence
Possessive pronouns – those designating possession or ownership
Relative pronouns – those which refer to nouns mentioned previously, acting to introduce an adjective (relative) clause
Interrogative pronouns – those which introduce a question
Reciprocal pronouns – those expressing mutual actions or relationship; i.e. one another
Intensive pronouns – those ending in –self or –selves and that serve to emphasize their antecedents

Example of pronouns:

We are going on vacation.

Don’t tell me that you can’t go with us.

Anybody who says it won’t be fun has no clue what they are talking about.

These are terribly steep stairs.

We ran into each other at the mall.

I’m not sure which is worse: rain or snow.

It is one of the nicest Italian restaurants in town.

Richard stared at himself in the mirror.

The laundry isn’t going to do itself.

Someone spilled orange juice all over the countertop!
Ma'am can i barrow you're pencil in a while