The Relationship mapping style allows you to see two data patterns within a single map. When overlapping two topics, we can instantly assess if the two patterns are happening in the same locations. This map uses this technique to compare wind speed and pressure during hurricanes. Hurricanes are strongest when wind speed is high and pressure is low. The Relationship mapping style helps us quickly see where hurricanes are the strongest by comparing these two things. A customized legend helps make the map easier to understand.