Kingori, who joined GQ just over a year ago, is currently head of fashion advertising for GQ and adds the new role to her remit. Barriball was previously advertisement director for GQ.
Both will take up their roles with immediate effect, and will report to Jamie Bill, the publisher of GQ, who said: "These promotions are in recognition of the significant contribution made to the commercial success of British GQ and GQ Style by Justin and Vanessa, both of whom are highly respected within the advertising business.
"With our magazines bucking the trend in the market and outselling our competitors by a country mile, these are exciting times."
According to the latest ABC magazine circulation figures, for January to June 2010, .
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