Rénald Luzier is a French cartoonist and press artist, who works under the pen name Luz. Fascinated by rock, Luz has been a collaborator of the cultural magazines Les Inrockuptibles and Magic, but also of the satirical magazine Charlie Hebdo. In 1991-1992 he also published in the anti-Gulf War magazine Le Grosse Bertha. He edited his own fanzine, called Cambouis, that was collected in book format by L'Association in 2002. He is additionally a contributor to Ferraille magazine and L'Écho des Savanes. His clubbing guide 'Le dico de la hype' was published in Fluide Glacial, the magazine to which he has regularly contributed work since 2003.
Work by Luz has been collected in book format by Charlie Hebdo, but also by Hoëbeke and Les Échappés since 1998. Among the titles are 'Les Megret Gerent la Ville', 'Monsieur le Baron', 'King of Club' and several more. Luz has created a biography of Mark Edward Smith, the singer of the band The Fall. Luz is also active a DJ at the Élyssee Montmartre, the Pop In or the Truskel.
On 7 January 2015 he escaped the terrorist attack on the editorial offices of Charlie Hebdo, because he was late for the planned meeting.