When is it okay to use graphics tables or charts in an essay?

Graphics, tables, or charts can be used in an essay when they enhance the understanding of complex data or concepts that are difficult to convey with text alone. They are particularly useful in presenting statistical information, comparing data sets, or illustrating trends. However, they should be relevant to the essay's argument and properly referenced, ensuring they complement the written content rather than distract from it. Always ensure that they are clearly labeled and explained within the text.