What is the difference between classical liberalism, neoliberalism and libertarianism?

[u/alexfreemanart]

Could you please help me? What are the differences between these three? In what ways do they disagree with each other?

[u/Maztr_on]

the first two are insanely stupid ideologies whilst Libertarianism aka Libertarian Communism is an ideology that seeks communist societ through generally horizontalist means.