This document discusses the differences between informal, semi-formal, and formal levels of language and their appropriate uses. It notes that while personal experiences and opinions are valid in academic writing, they must be placed in a wider context and analyzed objectively rather than emotionally. The document provides guidance on when it may or may not be appropriate to use first-person pronouns in academic writing based on the assignment and professor's preferences. It also reviews key aspects of writing good topic sentences for paragraphs such as introducing the topic, making a point, and having an appropriate scope.