Marxist Book Centre in Newport

Whatever happened to radical bookshops? Swansea had Revolt Books; Cardiff had One-O-Eight on Salisbury Road. In 1986 M & L Books opened in Newport. I'm assuming it stood for Marx and Lenin. Heaven only knows how long they managed to swim against the Thatcherite tide before sinking but it's strangely comforting to know that they actually existed. Any more information on this overt manifestation of Marxism in Newport would be much appreciated.