 In April 2001, the attractions attached to the National Museum were granted free entry by the Assembly, and this action saw the visitor numbers to the sites increase during 2001–2002 by 87.8 per cent to 1,430,428.Aberystwyth is home to the National Library of Wales, which houses some of the most important collections in Wales, including the Sir John Williams Collection and the Shirburn Castle collection.As well as its printed collection the Library holds important Welsh art collections including portraits and photographs, ephemera such as postcards, posters and Ordnance Survey maps.