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Welcome to ArcGIS Desktop Help
Copyright information
GIS Dictionary
What's new in ArcGIS
Getting started
Map projections and coordinate systems
Getting started with map projections
Geographic coordinate systems
Projected coordinate systems

About projected coordinate systems

About map projections

Projection types

Planar projections

Conic projections

Cylindrical projections

Other projections

Projection parameters
Geographic transformations
Supported map projections
Vertical coordinate systems
Mapping and visualization
Editing and data compilation
Geoprocessing
Geoprocessing tool reference
Geodatabases and ArcSDE
Data management with ArcCatalog
Data support in ArcGIS
Extensions
Geocoding and address management
Linear referencing
Network analysis
Mobile GIS
Interoperability and standards support
Customizing and developing with ArcGIS
Guide to data that comes with ArcGIS
ESRI Data and Maps
Getting started with ESRI Data and Maps

What's new in ESRI Data and Maps

An overview of ESRI Data and Maps

Redistribution rights
United States (census)

United States 108th Congressional Districts

United States 109th Congressional Districts

United States Census Block Centroid Populations

United States Census Block Groups

United States Census Feature Class Codes (table)

United States Census Tracts

United States Census Urbanized Areas

United States Cities

United States Core Based Statistical Areas

United States Counties

United States Counties (generalized)

United States County Boundaries

United States County Population Estimates 1990 (table)

United States County Population Estimates 2000 (table)

United States National Atlas Cities

United States National Atlas Urbanized Areas

United States Populated Place Areas

United States Populated Place Points

United States States

United States States (generalized)

United States State Boundaries

United States Telephone Area Code Boundaries

United States ZIP Code Areas (three-digit)

United States ZIP Code Areas (five-digit)

United States ZIP Code Points
United States (hydrography)
United States (landmarks)
United States (transportation)
United States (other)
StreetMap USA
World
Europe
Canada

Canada FSA Postal Centroids

Canada Highways

Canada Indian Reserves

Canada Major Cities

Canada Municipalities

Canada National Parks

Canada Provinces

Canada Provincial Parks

Canada Railways

Canada Regional Municipalities

Canada Rural Cities

Canada Telephone Area Code Boundaries

Canada Urban Cities

Canada Water Bodies
Mexico
Elevation and image data
Working with StreetMap data
Licensing and desktop administration
ArcGIS Image Server
GIS Servers and services