The key of a pictograph is a section that explains the symbols used in the graph. It associates each symbol with its corresponding value or category. It helps viewers understand and interpret the data accurately.

In a pictograph, a key represents the value of the image. If the frequency of the data is too large, a key is useful, which should be represented along with the pictograph.

Pictograms are visual tools that use images to represent data or information. They are often used in charts, maps, or infographics to make complex information easier to understand. A key, or legend, is an essential part of a pictogram as it explains what each symbol or image stands for.

Use a key to indicate the value of each image when displaying the data using images because one image cannot adequately depict the data if the frequency of the data is too high. As a result, the “key” numerical value, which must also be written with the pictograph, is used.

What is a pictograph key? A pictograph key indicates what each icon or image represents. Each icon or image represents a frequency. Therefore, when creating a pictograph, make sure to define your pictograph key first.