Under the PLR Scheme details of book loans are collected from a sample of around thirty public library authorities throughout the United Kingdom. The loans data is collected by sample library computers over the period of a year (1 July - 30 June) and is transmitted to the PLR computer at regular intervals.

About 65% of public library authorities in the United Kingdom have participated in the PLR sample since the Scheme began in 1982. At least seven of the sample authorities are changed each year. Loans data is collected from several (or all) library branches within each authority.

PLR is restricted to loans of books from public libraries. Book loans from university, college, school and other libraries do not qualify for payment.

Current Sample shows the list of authorities which are participating in the sample this year (1 July 2010 - 30 June 2011). Previous years listings are available within the Library Sample Archive.

Lists of national and regional 100 most borrowed titles are collated and distributed by PLR yearly. For further information look in our Media Centre.