Caleb Neelon is an artist and writer based in Cambridge, Massachusetts.

As a thirteen-year-old in February of 1990, Caleb Neelon visited family friends in small-town Germany with his mother and took a side trip to Berlin. For Neelon, the sight of the newly opened Berlin Wall, covered in graffiti and murals was a revelation.  By the mid 1990s, Neelon was immersed in the global graffiti scene under the name SONIK.  He traveled constantly and developed a vivid, homespun, and raw style of mixed media painting in cities from Kathmandu to São Paulo. He freely crossed boundaries between graffiti, murals, and what would soon be referred to as street art.  As a teenager, he began to write in-depth articles for graffiti fanzines, documenting the art, artists, and history of his global community.  

Caleb Neelon's broad range of activity in the past decade includes studio and commercial artwork, cultural diplomacy projects through the U.S. State Department; curatorial work at museums, projects bringing artwork to hospitals, libraries, and schools, documentary film production, and painting for fun in the street.  Neelon has authored or collaborated on over two dozen books, including several with frequent collaborator Roger Gastman such as the 2011 HarperCollins release The History of American Graffiti. Also over the past decade, Neelon has done several projects with his favorite childhood author and illustrator, Ed Emberley, including retrospective museum shows, tribute murals, and along with Todd Oldham, the 2016 retrospective Ed Emberley (AMMO Books).