Assertive communication involves clearly stating needs, feelings, and wants without violating others. It is contrasted with aggressive communication, which asserts oneself at the expense of others, and passive communication, which withholds needs.
The document provides strategies for assertive communication, including acknowledging constructive criticism, sorting out non-constructive criticism, using "broken record" repetition to make your position clear, slowing down conversations, stating your position, active listening, compromise, and saying no while sharing negative feelings. It emphasizes replacing passive and aggressive habits with lifelong assertive skills.