Several important Celtic books are out of print. If the title you're looking for isn't available on this page, you can also try a rare book search.
I've put together a meta-booksearch page. You can search 25 Internet bookstores, including some specializing in hard-to-find, used, or out-of-print books. Or use this search box to search for used copies:
The Scriptorium offers art fonts (sometimes called dingbats) and traditional fonts based on Celtic lettering. The title image of this page shows one of his Celtic fonts. He also offers Celtic images from the Book of Kells for desktop publishing -- The number of images in the collections is considerably fewer than these because the image file sizes are so much larger, but we were very happy with the quality of the images we purchased there.
You can download a demo version of Scriptorium's Stonecross font in Zip format or Stuffit for MacOS. Installation instructions are included. You can also download a sample version of the font of the month.
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