These six ongoing titles, all of which carried a "Suggested for Mature Readers" label on their covers, shared a sophistication-driven sensibility the comics fan media dubbed "the Bergerverse". In a 1992 editorial meeting with Levitz, publisher Jenette Kahn, and managing editor Dick Giordano, Berger was given the mandate to place these titles under an imprint that, as Berger described, would "do something different in comics and help the medium 'grow up'". Several DC titles bearing the age advisory, such as "Green Arrow", "Blackhawk", and "The Question" (the last two cancelled before the launch of Vertigo), did not make the transition to the new imprint.