The fact that so few books can be associated with Wales prior to 1100 means that it is extremely difficult to build up a picture of the artistic capabilities of scribes in the region and of the cultural and religious influences on their output. With the exception of Llanbadarn Fawr towards the end of the period, it is also impossible to identify specific scriptoria with the resources for illuminated manuscript production. However, the illuminated manuscripts that do survive prior to 1100 indicate that art in Wales was firmly within the Insular tradition, an impression confirmed by the growing corpus of stone sculpture and ornamental metalwork.

The earliest illuminated manuscripts that have a definite or possible association with Wales are two gospel-books. The first of these is an incomplete, eighth-century, luxury copy known as the Lichfield Gospels or the Book of St Chad. Where it was produced is unknown, but an early ninth-century Latin addition at the end of St Matthew’s Gospel records that it was bought by Gelhi, son of Arthudd, who ‘gave that Gospel to God on the altar of St Teilo’. The foundation concerned may be identified as Llandeilo Fawr (Carmarthenshire). The beginning of the book, possibly one of two volumes, is missing and it breaks off after Luke 3.9.