Publishing on 28th May Following on from Based Upon’s award-winning book Manual, Liminalism captures twenty years of the London artist. This non-linear work invites viewers to explore its pages through live indexing, offering a collection of thought-provoking visual pairings that document Based Upon’s exploration in landscape and the epic sculptural works that result from its process. Becoming a philosophical treatise, Liminalism illustrates that truth exists not only in those things which can be named, but in the apparent space between them. Readers are invited to allow the images to act as edges between which a connective tissue can be found. In bringing awareness to the liminal space between these pairings, each viewer creates their own exhibition, while the artist offers a poetic reflection on life as a creator. Details UK release: 28 May 2026 US release: 23 June 2026 ISBN: 978-1-917627-09-2 Size: 33 cm × 30 cm, portrait Binding: Hardback RRP: £55, $75 Extent: 156 pp Illustrations: 124 colour, 12 b&w Contributors: Ian Abell, Meagan Kelly Horsman Editor: Based Upon Designer: Based Upon Publishers: Hurtwood Press, London, and Based Upon, London Printed in: UK