I have been trying to obtain the following markers effect.
How can I do the same in ArcGIS?
This image is from a book.
[GIS] How to obtain overlapping semi-transparent circles effect in ArcGIS for Desktop
arcgis-desktopcartographyoverlapping-features
Best Answer
The symbols shown in the map are standardized proportional symbols. In ArcGIS, I believe under a symbology of a layer there is an option for proportional symbols. The legend arrangement shown here is a nested-legend arrangement. I am not sure if you have space constraint on the map but generally I avoid those because it makes difficult for user to compare symbol. If you do not have space constraint use linear-legend arrangement.