During the summer of 2014, small books on the medieval stone grotesques at Gresford and the stained glass at the Church of St Mary, Tenby were written and produced by Martin Crampin. The first was a special limited edition book to accompany an exhibition, 'Patterns, Monsters and Mysteries', while the second was commissioned by the Friends of St Mary's, Tenby.
Sulien Books was subsequently established as an imprint to publish similar books in the future, and the first book to be officially published by Sulien Books was similar to the Gresford book, featuring more new images from the same exhibition. The Medieval Tiles of Strata Florida also summarises the history of the site and decribes the medieval artworks on which the images are based.
The two earlier books were retrosepctively provided with ISBN numbers, as discussions began on collaboration for future projects.