The Campaign for the Book has launched a legal challenge over the widespread library closures, claiming culture secretary Jeremy Hunt has failed to comply with his duties under the 1964 Public Libraries and Museums Act.
Author Alan Gibbons, campaign organiser, said he had instructed his solicitors to "pursue the campaign's concerns". He said: " I think it is vital that the courts examine the legality of the Secretary of State's approach on the provision of libraries in England and Wales.
"He has a duty to ensure that councils provide a 'comprehensive and efficient' service. I believe that he is failing in that duty."
Meanwhile, Lewisham residents Patricia and Peter Richardson have also sent a formal request to the culture secretary, asking that he intervene over library closures in their borough. In a legally drafted letter, the couple claimed the closures breached the 1964 Act, requiring Hunt to intervene.
The challenges follow the High Court action launched last week over closures in Gloucestershire and Somerset.