These are true collectibles, signed by the artist and numbered for posterity and historical documentation. Each print comes with it's own provenance in the form of a COA or, Certificate of Authenticity. These works of art were created for the multi Cygnus award winning science fiction book series Citadel 7 by acclaimed author Yuan Jur. Original artwork digitally painted with standard brushes in Adobe Photoshop with a Wacom pen and tablet. The Citadel 7 website by Infinitee Web Design.