Four decades after the Belgian cartoonist known as Hergé complained that comic book art wasn’t truly appreciated, the Grand Palais in Paris is hosting an extensive retrospective of his work.

“I hope [comic book art] will have its rightful place, that it will become an expression in itself like literature or cinema,” Hergé, whose real name was Georges Remi, told biographer Philippe Goddin in 1969.

Running Sept. 28 to Jan. 15, “Hergé” marks the second time in a decade that the cartoonist’s work has been on display in a major French museum and follows a wave of renewed interest globally.

His signature character, Tintin, has been the subject of recent shows in London and Barcelona, a 2011 Hollywood adaptation, a videogame and an app. At auction, his work is leading an increasing demand for comic art. In April, original drawings of the last two pages of his “King Ottokar’s Sceptre,” from 1939, sold for €1.05 million ($1.2 million). The €2.6 million fetched at a 2014 Artcurial auction, for drawings that graced the cover pages of Tintin books from 1937 to 1958, is the highest price paid for a piece of comic art.