Quite good, accessible explanation of such mechanisms as automatization, speculation, reproduction minimum, crisis of overproduction, falling rates of profit, economic cycles, proletarianization, accumulation of capital, relative impoverishment – that the accumulation of enormous wealth on one end is accompanied by massive impoverishment on the other.
A solid choice for radicalizing people (it was literally written for the workers not as some academic discourse after all). If you're struggling with the first chapters of Das Kapital, read this and Value, Price and Profit or try the abridgement by Otto Rühle.
Especially since latey I've been developing a theory that Marx might be autistic to some notable extent, especially in the are of the theory of mind. Plus his inductive method albeit grounded in dialectical materialism did not prevent him from writing some of his works in a quite dense style. Luckily it is not the case here.