A commentary provides analysis and interpretation of a text through observations and comments on specific details. It expresses the writer's opinion, insights, and reactions. In contrast, a critique formally evaluates and analyzes a text or work, including both a summary and the reviewer's assessment. When writing commentaries or critiques, writers should carefully read the source text multiple times to understand implicit meanings, outline the main points, and follow a general structure with an introduction, overview, detailed analysis, and conclusion.