When you’ve chosen the type of diagram, it’s important to design it in a way that makes sense and looks appealing. Start by using a logical structure and a consistent layout. Arrange your elements to show the relationships and hierarchy of your information, and use the same style, color, and font for similar elements. Additionally, labels and legends should be used to explain symbols and abbreviations. Make sure they are concise, accurate, and readable. Legends can also define the meaning of colors, shapes, and lines. To create balance and emphasis, use white space and contrast. Avoid overcrowding with too much detail or too many colors; instead use white space to separate elements and create a clear flow. Contrast can be used to highlight the most important or relevant parts of your diagram.