Just received: "Anti-Marx", by Juan Ramón Rallo, one of the maybe... two? truly liberal academics in Spain.

It's advertised and reviewed as the most exhaustive and systematic critiques of Marx ever written.

He goes through every single theory Marx and Engels put forward, to the point of even making a much more cohesive job than they ever managed, and puts them together in a truly "neutral" presentation that takes a whole volume, with no "preventive" arguments or critiques.

Then, he spends 500 pages demolishing them until there's nothing left of them. It is fully up to date to incorporate and take care of modern marxist countercritiques and interpretations too, so it's truly tight.

Unfortunately it's in Spanish, but hopefully it will get published for a global audience soon. Keep it in your to-read list.