Cressida Cowell - is a video game writer. Cressida Cowell began his career in 2013 and has worked for companies such as Knowledge Adventure and JumpStart Games. Cressida Cowell's first game was School of Dragons which was released 10 years ago. Best Game Cressida Cowell contributed to was School of Dragons. Cressida Cowell's latest work is School of Dragons which was released 10 years ago.