Justinien Tribillon is an independent writer, researcher and editor.

An urbanist, he's interested in understanding cities, their social fabric, the way they are governed and designed. He regularly contributes feature articles to The Guardian, writing for instance about Paris's subterranean secrets, or Bucharest uncanny wildlife reserves.

Justinien is a researcher at Theatrum Mundi, a London-based charity iniated by Richard Sennett to improve our understanding of cities though education and research. Theatrum Mundi is particularly interested in stimulating the discussion between artists and city-makers: architects, planners, engineers.

Justinien also works with architectural practices and local authorities as a consultant on urban regeneration, local economic development and public engagement. Recent projects include co-authoring a toolkit on tactical urbanism for Transport for London, a project led by Architecture 00 and Studio Weave.

He teaches urban studies to graduate and postgraduate students at the Bartlett, University College London. Justinien is a PhD candidate at UCL, where he researches the socio-spatial divide between Paris proper and the Banlieue, relying on an interdisciplinary approach that includes urban studies, history, architecture, cultural studies and sociology. Before joining UCL, Justinien trained in social science, urban design and urban policy at Sciences Po and the LSE.
Justinien is also keen to explore the topic of migration and its impact on space—he's an editor and publisher of Migrant Journal, a six-issue publication edited by Michaela Büsse, Dámaso Randulfe and Justinien, co-edited and art directed by Isabel Seiffert and Christoph Miler of Offshore Studio. Migrant Journal looks at migration with a resolutely interdisciplinary, prejudice-free approach, bringing together artists, philosophers, illustrators, curators, journalists, architects, academics, photographers. In under a year, the journal printing at 800 copies for its first issue released in October 2016 has turned into a great publishing success, read and distributed from Hong Kong to Amsterdam, Paris to San Francisco, with a current print run of 4,000 copies.

Justinien is regularly invited to present his research, participate to panel on cities and urban issue or talk about Migrant Journal at public events.