Bad graphs are frequently used to mislead people because the reader does not usually take much time to consider what the graph is actually telling them. In this first example we can see how the area of an object causes us to misinterpret its actually value. The McDonald's sales appear approximately 50 times greater than those of KFC when in reality they are only 10 times greater. Pictograms are often misleading and require the reader to proceed with caution when making conclusions.