French satirical weekly Charlie Hebdo's publisher, known only as Charb, poses as he presents his new comic strip named "La Vie de Mahomet" (The life of Mohammed) in Paris on December 27, 2012. AFP PHOTO / FRANCOIS GUILLOT

On Wednesday French magazine Charlie Hebdo plans to publish a comic-book style biography of the Prophet Muhammad, complete with illustrations. In Islam it is forbidden to portray any image of the Prophet. Muslim authors and historians contributed to the special issue, which editor Stephane Charbonnier deems historically "halal". For many, the publication reignites previous concerns over the magazine's controversial cartoons.