Tueni's journalism career started when he became the general manager, editor in chief and editorialist for the weekly magazine An Nahar Arab and International that he and other journalists launched in Paris in 1979 and that was published until 1990.[1][2] Then, he served as the general director of the daily paper An Nahar from 1993 to 1999 and the general director of the monthly magazine Noun from 1997 to 2000.[5] His friendship with General Michel Aoun led to his exile to Paris from 1990 to 1993.[3] He became an active member of the World Association of Newspapers (WAN) in 1990 and WAN's advisor on Middle-Eastern affairs. He was also a member of WAN's Fund for Press Freedom Development, created in 1994.[3] Tueni was the publisher, chairman of the board, director and editorialist of An Nahar beginning on 1 January 2000 until his death on 12 December 2005.[5][6]