The Marx Memorial Library in London holds more than 43,000 books, pamphlets and newspapers on Marxism, Scientific Socialism and Working class history. It is a Grade II listed building.
The Library also features the fresco The worker of the future upsetting the economic chaos of the present, painted by Jack Hastings in 1935 with the assistance of the American artist, Clifford Wight.
The Library opened in 1933 at 37a Clerkenwell Green, formerly home to many radical organisations, and base of an important publishing operation.
The Library now also houses "The Printers Collection" consisting of the archives of the printing and papermaking unions of the UK and Ireland. The collection includes union documents, magazines, photographs, badges and memorabilia. The archive was opened in March 2009 by Derek Simpson Joint General Secretary of Unite and Tony Burke, Assistant General Secretary of Unite.
The building now occupied by the library was originally built in 1738 to house the Welsh Charity School. It was designed by James Steer, and the construction funded by subscriptions. The school moved out to a new home in Gray’s Inn Lane (now Gray's Inn Road) in 1772. The building subsequently became (in part) a public house, the Northumberland Arms; and was put to other commercial uses. Part of it was occupied from 1872 onwards by the radical London Patriotic Society; and from 1893 (with the financial backing of William Morris) by the Twentieth Century Press Ltd, publishers of Justice, the newspaper of the Social Democratic Federation. The Press expanded to take over the whole building in 1908–9, and remained until 1922. It was during this period, in 1902–3, that the exiled V.I. Lenin worked in the building, publishing seventeen issues of his newspaper Iskra (Spark) from here. The office he allegedly used has been preserved as a memorial to him: in fact, this room did not exist at the time he was there, although he may have worked in an earlier office partly on its site.