This volume, the final of three, focuses on the inscribed stones and stone sculpture of north Wales c. AD 400 - 1150. It provides fresh insights and new interpretations of over 150 monuments, many of which have been found since V. E. Nash-Williams's Early Christian Monuments of Wales was published in 1950. It includes an introductory discussion analysing the historical and archaeological context of the monuments, earlier research, geology, form and function, ornament and iconography and the language and lettering of the inscriptions, as well as cultural connections, dating and chronology. The well-illustrated catalogue provides more detailed descriptions and analyses of individual monuments.