Book of photographs from Mark Purdom's series From Certainty to Doubt. The project contains three different publications, each being a version of the same publication with variations around the sequencing and additional material - so it is unclear which is the 'real' version. This makes each publication meaningful in itself while setting up a conversation amongst all three, including ideas around selection and editing of content. The covers of all three publications merge into each other when stacked, playing out further notions of mimicry and uncertainty.