comics / Marvel / National Comic Book Day Happy National Comic Book Day, True Believers! Head to… Happy National Comic Book Day, True Believers! Head to marvel.com/redeem and celebrate with some FREE digital comics on us. Share this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Google+ (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Pinterest (Opens in new window)