Carpet pages are a characteristic feature of Insular illuminated manuscripts. They are pages of mainly geometrical ornamentation, which may include repeated animal forms, typically placed at the beginning of each of the four Gospels in Gospel Books. The designation "carpet page" is used to describe those pages in Christian, Islamic, or Jewish illuminated manuscripts that contain little or no text and which are filled entirely with decorative motifs. They are distinct from pages devoted to highly decorated historiated initials, though the style of decoration may be very similar.
Carpet pages are wholly devoted to ornamentation with brilliant colors, active lines, and complex patterns of interlace. They are normally symmetrical, or very nearly so, about both a horizontal and vertical axis, though for example the page at right is only symmetrical about a vertical axis. Some art historians find their origin in similar Coptic decorative book pages, and they also clearly borrow from contemporary metalwork decoration. Oriental carpets, or other textiles, may themselves have been influences. The tooled leather book binding of the St Cuthbert Gospel represents a simple carpet page in another medium, and the few surviving treasure bindings - metalwork book covers or book shrines - from the same period, such as that on the Lindau Gospels, are also close parallels. Roman floor mosaics seen in post-Roman Britain, are also cited as a possible source. The Hebrew Codex Cairensis, from 9th century Galilee, also contains a similar type of page, but stylistically very different.
The earliest surviving example is from the early 7th century Bobbio Orosius, and relates more closely to Late Antique decoration. There are notable carpet pages in the Book of Kells, Lindisfarne Gospels, Book of Durrow, and other manuscripts.
Carpet pages are also found in some medieval Hebrew manuscripts, typically opening the major sections of the book. Islamic manuscripts, especially Qu'rans, often have pages entirely devoted to complex geometrical decoration, but the term is not usually used of them.