Researching family history has become increasingly popular in recent years. The documents held at the Public Record Office and the Family Records Centre span over 1,000 years and contain a wealth of information for family historians. This revised and expanded sixth edition of the publication provides a guide to using the national archives of England, Wales and the UK. It contains guidance on: using basic family history records, such as the census, wills and records for birth, marriage, death; tracing records regarding migration; researching the background of people from a wide range of professional, religious, social and regional groups; using military and legal records; and using the Public Record Office online catalogue.