Danish artist John Kenn Mortensen (who goes by Don Kenn on Tumblr and other sites) taps into the terror of our childhood nightmares with brilliant and terrifying monster drawings that he does on sticky notes.

The round and fuzzy forms of Mortensen’s illustrations make them seem like they could come from an innocuous children’s book, but the characters in his pictures are undeniably dark and terrifying.

If you like his work, be sure to check out his sticky-note monster book!

More info: Tumblr | Blogspot | Twitter | Facebook (h/t: kdcoco)