Image from http://www.ellenforney.com/bio.html
Biography from EllenForney.com:
Cartoonist Ellen Forney grew up in Philadelphia and has lived in Seattle, Washington since 1989. She created the Eisner-nominated comic books I Love Led Zeppelin and Monkey Food, and collaborated with Sherman Alexie on the National Book Award-winning novel The Absolutely True Diary of a Part-Time Indian. She has been teaching comics at Cornish College of the Arts since 2002. Ellen swims and does yoga, and fixes things with rubber bands and paper clips.
Praise for Ms. Forney's work in The Absolutely True Diary of a Part-Time Indian:
"Forney’s flawless artwork is invaluable to Alexie’s story."
"Alexie gave [Junior] his sharp voice, and Forney gave him his art: 65 comic illustrations that vary from one-page comic strips to notebook doodles taped to the page." - Jami Attenberg, Print Magazine
Ellen's blog has background information about the creation of the novel and her collaboration with Alexie. You can read it here.