The popular "diamond" presentation of the Nolan chart makes this particular comparison readily apparent.

It is possible to consider the Nolan chart to be an Eysenck model that has been rotated 45 degrees.

It is essentially the same as the Eysenck model and Nolan chart, with slightly different wording.

The Nolan chart was created by libertarian David Nolan.

The Nolan chart and the Pournelle chart classify political philosophies according to two axes of variation.

In August 2011, the libertarian Reason Magazine worked with the Rupe organization to survey 1,200 Americans by telephone and place their views within Nolan chart based categories.

Harris also frequently promotes the use of the World's Smallest Political Quiz in conjunction with the Nolan chart in an event called "Operation: Politically Homeless".

The traditional left-right spectrum forms a diagonal across the Nolan chart, with communism and fascism both in the ultra-populist corner, an assignment hotly disputed by more liberal-minded communists who do not advocate state control over matters of personal freedom.