This Gazetteer aims to be a comprehensive guide to places, artefacts and material in Yorkshire of Anglo-Saxon and Viking interest - AD400-1100. A glossary of terms and advice about access to churches and museums is included. PART 1 provides background material with illustrations about the Anglo-Saxons, Vikings, The Early Church, church building styles and architecture, plans and features of Anglo-Saxon churches, crossheads, cross-shafts, grave covers and grave markers. PART 2 identifies 282 sites with the aim of enabling the reader to know what they are looking for and where exactly to look. In alphabetical order and divided into East Yorkshire, North Yorkshire, South Yorkshire, West Yorkshire and York, each entry is star rated to indicate the quality of what there is to see and how easy it is to find, and precisely located and described, including measurements and descriptions of decoration where appropriate.The author has published guidebooks identifying historic sites from prehistory to 1945 in Orkney, Shetland, Northumberland and Tyne and Wear. This Gazetteer is the first in a series identifying Anglo-Saxon and Viking sites others will follow.