Hermine Landvreugd has written several short story collections and children’s books. Willem Is a Werewolf was the basis for Dutch public broadcaster VPRO’s children’s series Ik ben Willem (‘I Am Willem’), which was awarded the Cinekid Kinderkast Prize.
Jeroen ‘Shamrock’ Klaver is a graphic designer and illustrator whose credits include Dutch film and television rating guide Kijkwijzer, supermarket chain Albert Heijn’s Superdieren promotion, typefaces, and covers for books ans VPRO Gids magazine.