Book excerpt: "The aim of this index is to provide a quick reference to the literature on individual country houses in England, Wales, Scotland and Ireland, held in the National Art Library at the Victoria and Albert Museum. Over 4,000 country houses are included. The contents of 135 general books on architecture, architectural details and county histories have been indexed, as well as guides to individual country houses, catalogues of collections and sales catalogues. Only a few periodicals, apart from Country Life up to 1982, have been included."--Introduction.