How to Add and Format a Legend on a Map Using ArcMap ArcGIS - YouTube
Adding and customizing a legend in ArcMap - YouTube
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Error: System binding change detected. Some licenses may not be available - Esri BeLux
Setting symbol legend properties—Help | ArcGIS for Desktop
Working with legends—Help | ArcGIS for Desktop
applying lyr files
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Working with legends—Help | ArcGIS for Desktop
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Working with legends—Help | ArcGIS for Desktop
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Unable to edit legend in ArcGIS layout view - Geographic Information Systems Stack Exchange
