This document discusses pronoun reference and avoiding ambiguous or unclear pronoun usage. It identifies six situations to avoid: 1) ambiguous pronoun reference, 2) remote pronoun reference, 3) broad use of pronouns like this, that, which, and it without clear antecedents, 4) implied antecedents, 5) indefinite use of pronouns like they without a clear referent, and 6) using which or that to refer to people instead of who or whose. Clear pronoun reference is important for reader comprehension.