Illuminated Manuscripts
I am showing here two types, Celtic and Italian. Celtic of course is from Ireland and like the Italian was Catholic in nature. The one big difference was the Celtic scripts used Celtic mythology such as dragons, mythic animals and nature and the dark mysterious world of what I see personally as hangovers from the Druid world and maybe the Vikings.
This is my conjecture from looking at a fair amount of manuscripts and knowing a little bit about Celtic mythology. Look at the scripts, the pictures, the animals, the rich depictions of nature. They are very different from the heavily Roman Catholic Italian manuscripts. Ireland was isolated. It was just an island that in this time was far removed from the Roman Catholic world of Italy and Europe. They were light years apart and I believe that the Irish monks drew from what they knew.

Italian Manuscripts and letters
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The Italian letters were Highly, very, very, decorative.


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the monks that did the artwork labored in much the same conditions. very sparse and clean.




Of course not all of the monks worked in the same situations. as the picture below shows.

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tumblr_lmwsyuse3i1qabm59o1_500.jpg the ornamentation in this manuscript is based upon nature.




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Fillipo,Toriello,Italy

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Baptista

Below i Believe is Celtic because of the use of the Celtic knot

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Notice there is no "Knots" in the above Letters. Also notice that these Four letters seem to be roughly done.
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MedievalMonk.gif A monk working

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Escribano, Italian
Comparing the two monks the top seems to be Irish because it is so sparse. the above seems to be Italian because they he'd more history so more "stuff" to reference. the Irish were much later to the game and being isolated did not have the chance or ability to collect as the Roman Catholic church did.
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this letter seems to be mainland Europe

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The above fits the criteria for Celtic letters, nature, the knot and the beast.

Below is a more contemporary letter and seems to be poking fun at something.
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