* Prepositions: Words like *of*, *to*, *in*, *on*, *by*, *with*, *for*, etc., that show the relationship between a noun or pronoun and another word in the sentence.
* Pronouns: Words that replace nouns, like *I*, *you*, *he*, *she*, *it*, *we*, *they*, *me*, *him*, *her*, *us*, *them*, etc.
The confusion might arise from the fact that pronouns can be used as the object of a preposition.
For example:
* "The book is for her." Here, *her* is a pronoun that functions as the object of the preposition *for*.
However, pronouns themselves are not classified as "prepositional pronouns." They are simply pronouns that happen to be used in a prepositional phrase.