MariNaomi is the author and illustrator of the award-winning graphic memoir Kiss & Tell: A Romantic Resume, Ages 0 to 22 (Harper Perennial, 2011), Dragon's Breath and Other True Stories (2dcloud/Uncivilized Books, 2014), critically acclaimed book Turning Japanese (2dcloud, 2015), and her self-published Estrus Comics (1998 to 2009). Her work has appeared in over sixty anthologies, including I Saw You: Comics Inspired by Real Life Missed Connections, Cheers to Muses: Contemporary Works by Asian American Women, Eisner-nominated No Straight Lines, Ignatz-winner QU33R and Action Girl Comics. Her comics and essays have been featured on The Rumpus, The Weeklings, LA Review of Books, Midnight Breakfast, Truth-out, SFBay.CA, The Comics Journal, The Bay Citizen, XOJane and more. Mari's work on the Rumpus won a SPACE award and an honorable mention in Houghton Mifflin's Best American Comics 2013.

MariNaomi's artwork has been featured in such venues as the De Young Museum, Yerba Buena Center for the Arts, the Cartoon Art Museum, San Francisco's Asian American Museum and the Japanese American Museum in Los Angeles. In 2011, Mari toured with the literary roadshow Sister Spit. She splits her time between San Francisco and Los Angeles.

In her spare time, Mari has created and maintained the Cartoonists of Color Database and the LGBTQ Cartoonists Database.