The Political Spectrum

A political spectrum is a way showing political positions visually.
This is a basic political spectrum.

As seen on the spectrum, Radicals and Liberals are on "the left" and Conservatives and Reactionaries are on "the right."

The furthest to the left (radical) and furthest to the right (reactionary) are the extremists of both sides. The left usually desires change while the right usually wants things to remain how they are.