The pre-2000 version of the LiberGraph was somewhat simpler, with vague divisions between Left and Right; a dubious 'Moderate' classification and no 'Centrist' area.
    The old LiberGraph is closer to the original chart created by David Nolan and is still used by the Institute for Self-Government in their "World's Smallest Political Quiz."
    The new Liberty Index uses the same two measures of liberty to place legislator's standing.
    The LiberGraph was revised in 2001 to include the new classification: "Statist" and to modify other classifications. 

Libertarians advocate the maximum amount of Personal and Economic Liberty, consistent with the defense of individual rights.

To fit within the Libertarian triangle of the LiberGraph, legislators must rank higher than 50% on both Personal and Economic Liberty, with a consolidated rating above 75%
Fiscally conservative yet socially tolerant, libertarians favor lower taxes, free trade, individual rights and limited government.

Enterprisers advocate a moderate amount of Personal and Economic Liberty, with "good" government programs.

The Enterpriser triangle requires a rank higher than 50% on both Personal and Economic Liberty, with a consolidated rating above 50%.
Enterprises usually support free markets and usually oppose restrictions on individual civil liberties.

Conservatives advocate a large amount of Economic Liberty, but favor a large government role in social issues.

The Conservative square includes the far "right wing", with a rating above 50% on Economic Liberty, but lower than 50% on Personal Liberty.
Conservatives usually support free markets, private enterprise, strong police powers and cultural norms in social behavior.

Liberals advocate a large amount of Personal Liberty, but favor a large government role in economic issues.

The Liberal square includes the far "right wing", with a rating above 50% on Personal Liberty, but lower than 50% on Economic Liberty.
Liberals usually support government economic regulation,  income redistribution, police restraint and civil liberties.

Moderates advocate limited but strong government restraints on both economic and social issues.

The Moderate triangle requires a rank lower than 50% on both Personal and Economic Liberty, with a consolidated rating above 25%.
Moderates usually favor "effective and popular" government restraints on market forces and personal conduct.

Authoritarians advocate strong government restraints on both economic and social issues. The opposite of Libertarian principles.

The Authoritarian triangle requires ratings below 50% on both Personal and Economic Liberty, with a consolidated rating below 25%.
Authoritarians favor government ownership of property, restricted markets, strong police forces and social conformity with "politically correct" conduct.