Lerner's first book, The Forest for the Trees: An Editor's Advice to Writers, offered funny and frank talk from a publishing professional. In this follow-up memoir she reveals her lifelong struggle with compulsive eating and mental illness. A literary agent and former editor, Lerner joined Overeaters Anonymous at age 15 and rigorously adopted the 12-step program. A year later, she was prescribed lithium, though side effects soon forced her to quit the drug. Unmedicated and with an insensitive therapist, Lerner began her inevitable descent. While enrolled in the M.F.A. program at Columbia University, she came close to committing suicide, and this desperate act led to her voluntary admittance to the psych ward at Columbia Presbyterian Hospital. Her experience there and at the New York State Psychiatric Institute is the heart of this sincere book. Lerner's descriptions of fellow patients and hospital staff, the day-to-day routine of "the bin" and her therapy sessions are poignant and darkly comic; she emerges months later with a keen understanding of the psychology that drove her there and a newfound desire to live. In her epilogue Lerner writes: "It took a lifetime of tomorrows struggling with the scale and severe mood swings before I was accurately diagnosed and properly treated." Neither happened in the hospital. According to Lerner's current doctor, "All [she] needed was lithium" (albeit, an adjusted dosage); hospitalization was a "waste." Whether or not readers agree with this assessment—and Lerner herself has doubts—her lament is a triumph. (Feb.)