Fosli was born in
Dalen, Telemark. He has been a journalist for the newspaper
Dag og Tid. He made his literary debut in 1994 with a treatment of the
Kristiania Bohemians,
Kristianiabohemen. Byen, miljøet, menneska. Further books include
Kvite kull og svarte får. Ingeniørar i norsk skjønnlitteratur from 1996 and
Ute på prøve (1996). In 1995 he started the publishing house ExLex. From 2000 to 2005 he was editor of the literary magazine
Prosa. Among his later books are (2015), and (2020). ==References==