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Welcome to ArcGIS Desktop Help
Copyright information
GIS Dictionary
What's new in ArcGIS
Getting started
Fundamentals of GIS data

How maps convey geographic information

Georeferencing and coordinate systems

Elements of geographic information

How GIS represents and organizes geographic information

How ArcGIS users work with geographic information

Users work with many data types and data formats in ArcGIS
Introducing ArcGIS Desktop
Tutorials

Tutorials

Getting Started Quickstart tutorial index

3D Analyst tutorial index

Animation in ArcMap tutorial index

ArcGIS Publisher tutorial index

ArcReader tutorial index

ArcScan tutorial index

Building a Geodatabase tutorial index

Data interoperability tutorial index

Database servers tutorial index

Editing geodatabases tutorial index

Editing GIS features tutorial index

Geocoding tutorial index

Geoprocessing tutorial index

Linear Referencing tutorial index

Maplex tutorial index

Representations tutorial index

Spatial Analyst tutorial index

StreetMap tutorial index

Tracking Analyst tutorial index
Toolbars

Core ArcMap toolbars

ArcCatalog toolbars

Extension toolbars

ArcScene toolbars

ArcGlobe toolbars

ArcReader toolbars
Getting more help

Using this help system

Getting help within the applications

ArcGIS Desktop Documentation Library

Accessing ESRI Software Training

Using the GIS Dictionary

Contacting Technical Support

Support for users located outside the United States

Contacting ESRI
Map projections and coordinate systems
Getting started with map projections

An overview of map projections

Projection basics the GIS professional needs to know

About the geoid, ellipsoid, spheroid and datum, and how they are related

Identifying an unknown coordinate system

Converting Degrees Minutes Seconds values to Decimal Degree values
Geographic coordinate systems

About geographic coordinate systems

Spheroids and spheres

Datums

North American datums

What happens to features at +/-180 (dateline)?
Projected coordinate systems
Geographic transformations

Geographic transformation methods

Equation-based methods

Grid-based methods
Supported map projections

List of supported map projections

Aitoff

Alaska Grid

Alaska Series E

Albers Equal Area Conic

Azimuthal Equidistant

Behrmann Equal Area Cylindrical

Bipolar Oblique Conformal Conic

Bonne

Cassini-Soldner

Chamberlin Trimetric

Craster Parabolic

Cube

Cylindrical Equal Area

Double Stereographic

Eckert I

Eckert II

Eckert III

Eckert IV

Eckert V

Eckert VI

Equidistant Conic

Equidistant Cylindrical

Equirectangular

Fuller

Gall's Stereographic

Gauss-Kruger

Geocentric Coordinate System

Geographic Coordinate System

Gnomonic

Great Britain National Grid

Hammer-Aitoff

Hotine Oblique Mercator

Krovak

Lambert Azimuthal Equal Area

Lambert Conformal Conic

Local Cartesian Projection

Loximuthal

McBryde-Thomas Flat-Polar Quartic

Mercator

Miller Cylindrical

Mollweide

New Zealand National Grid

Orthographic

Perspective

Plate Carree

Polar Stereographic

Polyconic

Quartic Authalic

Rectified Skewed Orthomorphic

Robinson

Simple Conic

Sinusoidal

Space Oblique Mercator

State Plane Coordinate System

Stereographic

Times projection

Transverse Mercator

Two-Point Equidistant

Universal Polar Stereographic

Universal Transverse Mercator

Van der Grinten I

Vertical Near-Side Perspective

Winkel I

Winkel II

Winkel Tripel
Vertical coordinate systems
Mapping and visualization
Editing and data compilation
Geoprocessing
Geoprocessing tool reference

An overview of commonly used tools

Geoprocessing commands quick reference guide

Licensing for geoprocessing tools

Data types for geoprocessing tool parameters
3D Analyst toolbox
Analysis toolbox
Business Analyst toolbox
Cartography toolbox
Conversion toolbox
Coverage toolbox
Data Interoperability toolbox
Data Management toolbox
Geocoding toolbox
Geostatistical Analyst toolbox

An overview of the Geostatistical Analyst toolbox

Understanding geostatistical analysis

Working with a geostatistical layer

Creating a grid from a geostatistical layer

Geostatistical Analyst toolbox sample applications
Tools
Linear Referencing toolbox
Multidimensional toolbox
Military Analyst toolbox
Military Overlay Editor toolbox

An overview of the Military Overlay Editor toolbox
Utilities toolset
Network Analyst toolbox
Server toolbox
Spatial Analyst toolbox
Spatial Statistics toolbox
Samples toolbox
Tracking Analyst toolbox
Environment Settings
Geodatabases and ArcSDE
Data management with ArcCatalog
Data support in ArcGIS
Extensions
Geocoding and address management
Getting started with geocoding
Understanding geocoding
Preparing for geocoding
Building an address locator
Locating addresses
Additional geocoding techniques
Keeping an address locator current
Distributing your address locator
Adjusting your address locator file
About StreetMap data
Linear referencing
Network analysis

Using the Network Analyst extension
Analyzing geometric networks

What is a geometric network?
Creating and managing geometric networks
Editing geometric networks
Analyzing geometric networks
Mobile GIS
Interoperability and standards support
Customizing and developing with ArcGIS
Guide to data that comes with ArcGIS
Licensing and desktop administration
ArcGIS Image Server
GIS Servers and services