Moulds are an ever-present threat to library collections and in 2007 a serious outbreak occurred at Tate Library and Archive. Early detection followed by prompt action ensured that any lasting damage was prevented. Services continued to be offered to users during a two-month period while collections were inaccessible as environmental conditions were improved and the mould infestation was eradicated. The keys to success were good communication with library users, advice from experts in the field of building health problems and the willingness of Library and Archive staff to clean a quarter of a million volumes.
