This document provides guidance on how to effectively use visual aids when giving presentations. It discusses introducing visual aids by explaining that they are memorable and reduce speaking time. Types of visual aids include graphs, charts and diagrams. When commenting on visual aids, highlight key points and draw attention to significant areas before providing interpretations. Descriptions of changes over time should use words like increase, decrease, rise and fall to convey trends, and comment on the scale of changes. Presenters should focus on overall trends rather than precise figures.