The title "Planned Chaos" comes from Mises's description of the reality of central planning and socialism, whether of the national variety (Nazism) or the international variety (communism).
Rather than create an orderly society, the attempt to central plan has precisely the opposite effect.
By short-circuiting the price mechanism and forcing people into economic lives contrary to their own choosing, central planning destroys the capital base and creates economic randomness that eventually ends in killing prosperity.