Arjen Mulder is an Amsterdam-based essayist and media theorist with a background in biology. He is editor for V2_ Publishing, editor of De Gids, and has taught at various art schools in the Netherlands and Belgium. He was also a member of the theory collective Bilwet (Adilkno). He has written and edited several books in the field of interactive art and media theory, amongst which are Understanding Media Theory (2004), The Book for the Electronic Arts(2000, with Maaike Post), Interact or Die! (2007, with Joke Brouwer), Dick Raaymakers: A Monograph (2008, with Joke Brouwer).

Arjen Mulder contributed to the High Tides Programme Thinking tide, sensing scale.