The organisation is hosting a two-round pitch process, with shortlisted agencies set to pitch their credentials by August.
Five agencies will then battle it out for a brief promoting the library's winter exhibition, ‘London, a life in maps', which runs from November to March 2007.
While a single agency will take that specific brief, the others will join the roster for a chance to handle future projects. Potential work includes PR and public affairs for the library's digital section, as well as promotion of its business partnerships.
‘While one agency will take the brief, all those shortlisted will be on the roster so everyone is a winner,' said PR manager, business science and technology, Lawrence Christensen.
The winning agencies will either report to Christensen or PR manager for arts and heritage Catriona Finlayson, depending on the nature of the brief.
The British Library has previously used Mission21 and Arthur Leone PR on project work.
The library opened the Business and Intellectual Property Centre in March, offering the public free access to its news and patent protection database.
For more information go to www.infobrokers.co.uk