This little book shares the concept art, lore and some process for the illustrations explored in the first set of pins for Birds at Arms. If you enjoy birds and swords and magic, the Merchant thinks you may find this a delight.
The Merchant is also slightly confused by the existence of this book. It seems to depict things from her world in great detail, and she is uncertain why this is called "concept art"... Perhaps this was made by Ethos and Lumire?