Jeanine Rahir studied at the Saint-Luc Institute in Liège, together with her twin sister Renée. Between 1985 and 1989, Jeanine and Renée Rahir created numerous short stories for the magazine Tintin and its Dutch equivalent, Kuifje. From the late 1980s she worked almost exclusively for the publishing house Glénat. In 1989, Jeanine scripted 'Les Voyages de M. Victor', with art by Marie-José Sacré. In 1991, the sisters made 'Barry Lan' together and Jeanine went solo with 'Chevalier Walder', a heroic fantasy series published between 1997 and 2003. Jeanine Rahir has also illustrated postcards for Editions Colorprint.