Mardou was born and raised in Manchester, England in 1975. After gaining her BA in English Literature she started making mini-comics, mostly stories about women trying to figure life out. She has made comics for web, print and film and now lives in St Louis, Missouri with her cartoonist-husband, Ted May, and their daughter. She has written and illustrated two volumes of her graphic novel, Sky in Stereo. Her next graphic novel called 'Strange Kind of Love' be published by RevivalHouse Press in late 2021.