One of Mike Salter's fine county gazetteers, although the histories and descriptions can come from elderly sources. This is a fairly comprehensive guide to the castles and tower houses of Cumbria (formerly Cumberland, Westmoreland and Lancashire north of the Sands), with a moderate listing of Bastle houses. The detail on individual sites is good, although many minor sites are just listed. The book is well illustrated and the plan and diagrams are very good.