Forney is the author of the graphic memoir Marbles: Mania, Depression, Michelangelo and Me. "Graphic memoir" is an apt term for the medium in which Forney investigates her past and personal struggle through diagnosis, treatment, and life with bipolar disorder. Via Skype, she points out that the visual nature of comics provides an ideal platform for the intimate, emotional details of her life. But "health care is ideally the combination of the clinical and the personal," Forney says. So, while still evoking raw honesty over Forney's fluctuating mental state on the page through drawing, Marbles is also annotated with facts culled from professional resources like the Diagnostic and Statistical Manual of Mental Disorders. Her experimental manipulation of style allows Forney to visualize the link between the physical and the subjective aspects of her mood disorder, changing the linework to evoke the chaotic emotions she was feeling at the time in her story. Forney's work points to one of the many ways comics helps communicate the experience of illness and add empathy to the discourse.