David Macphail is a Scottish author of fiction and non-fiction for children. Fiction series include Thorfinn the Nicest Viking, which was shortlisted for the Laugh Out Loud Book Awards, as well as Velda the Awesomest Viking and Top-Secret Grandad and Me. Miguel Díaz Rivas is a Madrid-based artist who studied Illustration at the Central Saint Martins School of Art. His hyper-kinetic style is perfect for action-packed childrens fiction. He loves making animations with After Effects and drawing comics.