Martin John Callanan is an artist researching an individual's place within systems.

Martin John Callanan is an artist researching an individual's place within systems. His work has been recognised with a Philip Leverhulme Prize and a fellowship at the Slade School of Fine Art. Alongside his studio practice, he spent over ten years as a lecturer at the Slade and other institutions across the EU, and over ten years as technical director for an artist's studio. He has also managed building renovation and exhibition construction through Enduring Projects — parallel roles that continue to shape an approach to art-making concerned with how things are built, run, and held together.

• Everything and Everyone I Ever Wanted, 6 picograms of data released into public domain
• We Wanted to Mean Something, a Selphish artwork
• Banknote Reconstructed, a Bank of England five pound banknote made from production waste.
• The Fundamental Units, the lowest denomination coin from each active currency imaged to vast detail.
• I Cannot Not Communicate, a library of recommendations based on fifteen years of reading.
• Each and Every Command, twelve years of image editing documented.
• Departure of All, flights happening at all international airports across the world at the moment.
• Wars During My Lifetime, a newspaper collecting, archiving and distributing a list of all conflicts fought.
• International Directory of Fictitious Telephone Numbers, dials at random from over half a million numbers that are designated never to function.
• A Planetary Order (Terrestrial Cloud Globe), an object showing clouds as they were for a single moment in time.
• Grounds, a large photographic archive documenting the floors from important buildings with restricted access.
• Letters 2004-2006, the responses to mass letter writing asking simple questions.
• Deed Poll, the process of a legal name change.
• Pi to thirty-nine decimal places can be used to calculate the volume of our observable universe, accurate to the size of one hydrogen atom.
• All the people who have ever lived, and will ever live, quantified as grains of sand.
• I Wanted to See All of the News From Today, continually collects newspaper front covers from around the world, as they are published.
• Text Trends, looks at our perception of words and data in graphical form.
• Location of I, tracked and published live physical location each minute for over two years.
• Sonification of You, makes audible ambient data transmission.
• Martin John Callanan is Okay, documents social networks status updates.
• I Am Still Alive, a message sent to people nearby.
• I Wanted to See the Whole of London, creates journeys around the city.
• Nephology, cloud observations.
• Entire Collection, a film of stolen copyright notices.
• Data Soliloquies, a co-authored book about the cultural fluidity of scientific data.