Instruct: Classify the given review into positive or negative sentiment.
Query: Well written, informative and potentially life-saving. A+

Excellent book. Ms. Dukakis was very brave to share her story. I related to so much of her story. Unfortunately for me, electroconvulsive therapy did not work for me.What finally did work? An out-patient procedure called vagus nerve stimulation. It saved my life. I would recommend a great book about this new FDA approved therapy "Out of the Black Hole: The Patient's Guide to Vagus Nerve Stimulation and Depression." Depression is truely a "black hole" and thankfully I have been out of the "black hole" for over a year.