Not by me, but by The Economist
Maybe this goes on my "read sometime" list
Author is professor emeritus at Oxford and student of the Soviet Union
Communism: Dead end | The Economist:
"At first sight, all seem puzzling. Communism was an impractical mishmash of ideas, imposed by squabbling zealots that promised much, delivered little and cost millions of lives. It is striking that 36 countries at one time or another adopted this system and that five—Cuba, Laos, North Korea, Vietnam and the biggest of them all, China—still pay lip service to it."