Mark Zirpel. Artwork included in Idea Searching for Design: How to Research and Develop Design Concepts by David Bramston and YeLi. London and New York: Bloomsbury Publishing, 2016 (2nd edition), pp. 50–51.
Zirpel's work is included in a chapter titled "Just Imagine if it were Possible."
View the publisher's page for the more recent eBook version of this publication.