I'm surprised no one has commented on this yet.
Marxism supposedly originated from the theories of Karl Marx, a German journalist, economist, philosopher, who lived in 1800's. The Communist Manifesto pamphlet and Das Kapital were his main thesis. Marx was a materialist. His Das Kapital is a work against the ideas of capitalism.
Regardless of where one lives today, we all have been bombarded with Marxist ideals, it has been that intrusive in people's lives, and unknowingly with most. This is why it is important to understand what Marxist-Communism is about.
If I could sum up what Marxist-Communism is, using the Biblical sense, I would describe it as Satan's master world-plan to bring in his future ten horns, seven heads, and ten crowns beast kingdom at the end of this present world. It is atheistic, opposes ownership of property (thus anti-capitalist), is against the idea of the family, has collectivism as one of its main systems, is murderous in nature, and is revolutionary with the goal of overthrowing all governments and rulers.
What took me the longest time to understand about Marxist-Communism, is that it has been initially established by wealthy westerners. Trotsky who helped foment the 1917 Russian revolution left New York city with $10,000 in his possession, and he had no job at the time. He was stopped by the police in Nova Scotia on his way to Moscow, and that's how the money was found on him. The powers in London told Nova Scotia to let him go. Lenin also left Switzerland with funds for the Russia revolution. Georgetown University history professor Carrol Quigley revealed British Socialists often worked with Communism, and had no problem doing so. The creation of the United Nations organization had as its ultimate goal the establishment of a "one world government". And its charter was designed so Communist nations like Russia or China could veto anything they didn't agree to.
Sixteen year ex-FBI agent Cleon Skousen in his 1958 book The Naked Communist, exposed 45 strategic points that the Soviet Communists have for taking over the United States. A simple read through those points reveals many of them having been fulfilled, with some of them in the works even still today. His book ought to be a must read in all American schools.