[patrec]

Not, OP, and not well read in Marxist literature either (life is too short), but I can recommend The Communist Manifesto, it's short, quite lucid and of enormous historical influence (and would be worth reading for that reason alone). As you say, the interesting part is the analysis, the proposed remedies do not just look bad in hindsight, after tens of millions of dead bodies.

[GFischer]

Yep, I see that I tend to agree with the diagnosis of many such books.

The solutions, not so much.

But they're definitely worth reading.