American-born cartoonist and illustrator Denise Dorrance worked in magazines in New York for twelve years (including at Cosmopolitan under Helen Gurley Brown) before moving to London in 1993. Her cartoons have run for decades in many publications, including the Mail on Sunday (UK). Polar Vortex is her first graphic novel. In the UK, it was shortlisted for the 2020 Myriad First Graphic Novel competition and won the LDComics 2020 Rosalind B. Penfold Prize.