Sensorium Tests documents Martin’s investigations of mirror-touch synaesthesia, a newly-discovered neurological condition. We worked in close collaboration with the artist to devise a system of graphic interventions which appear throughout the book, including a one-way mirror sheet to mimic the one which appears in Martin’s film, and numerical pattern illustrations that make reference to pivotal neuroscientific experiments relating to the subject matter. The feeling of the book is simple and tactile – somewhere between a scientific research paper and an artist’s book.