Requirements

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The artist meets the requirements for living people as defined in Wikipedia:Notability (people) in the "People still alive" section: Published authors, editors, and photographers who have written books with an audience of 5,000 or more or in periodicals with a circulation of 5,000 or more (as he has illustrated over 80 published books and collaborated to several electronic media contents, either television or videogames)

Ghislain Barbe indeed has a great body of work and is a known name in the RPG illustration field. This warrants inclusion in Wikipedia. The article should stay.