What happens when creative eccentricities shift over to true mental disorder? Cartoonist Ellen Forney gets to the heart of the matter in her graphic memoir, Marbles: Mania, Depression, Michelangelo, and Me (Gotham Books Paperback Original, $19.95). At first, Forney’s diagnosis of bipolar disorder felt like a badge of honor. But the emotional rollercoaster, the long process of finding the right balance of medication, the reaction of family and friends turned out to be more horror house than amusement park. “Forney is at the height of her powers as she explores the tenuous line between mood disorders and creativity itself.”—Alison Bechdel. Forney 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.