Following the devastating attack Wednesday on the Paris headquarters of satirical magazine Charlie Hebdo that left 12 dead -- among them, five cartoonists -- countless creators turned to social media to express their outrage and grief, but also their support of free speech and solidarity with those who risks their lives when they put pen to paper.

Hashtags such as #JesuisCharlie, #CharlieHebdo, #weaponsofchoice, #WeaponsOfMassConstruction have sprung up across Twitter, Facebook and Instagram, many accompanying photos of artists wielding their "weapons of choice": pens and pencils.

We've highlighted just some of those posts, as well as a few others that address the killings.

Post by Yanick Paquette.