ArcGIS Desktop 10.x – download a 60-day free trial of the most recent version at http://www.esri.com/software/arcgis/arcgis-for-desktop/free-trial
QGIS free and open source mapping software – download at http://qgis.org/en/site/
Instructions for mapping with ArcGIS – July 2015: click here to download
Instructions for mapping with QGIS – coming soon!
Instructions for mapping with Google Maps and Google Earth: click here to download
Master amphibian shapefile: download current amphibian spatial data at http://www.iucnredlist.org/technical-documents/spatial-data
Layers and tools for ArcGIS – Oct2014.zip (included EOO Calculator v1.2): click here to download
2014 EOO Calculator for ArcGIS v1.2.zip: click here to download (requires Advanced ArcGIS licence; please contact RLA Central Coordination Team if you need an upgrade)
RL Spatial attributes and codes Annex1 – ARLA Jan2014: click here to download
Sensitive Data Access Restrictions Policy for the IUCN Red List: click here to download
Additional mapping resources can be found at the following site: http://www.iucnredlist.org/technical-documents/red-list-training/iucnspatialresources.