Manifest Kommunisticheskoĭ partii.

Interesting read

The manifesto is not a highly complex and detailed view of Marxism and its' concepts. It served as an easy read for people to get a simplified understanding of the oppression structures during the industrial revolution and lists a set of goals which should be achieved to establish a communist society.

This should be seen as an easy introduction to the Marxist philosophy and a potential starting point for further research into this topic.

I think it's pretty good. It's pretty polemical and lays out the political goals of communists, it doesn't really get into Marxist philosophy and the methods in which Marx comes to his conclusions though. I'd probably recommend "Socialism: Utopian and Scientific" as a better introduction to Marxism.