This is an excellent overview of bipolar illness and is written for the practicing clinician. It covers bipolar types I and II as well the more subtle “soft” bipolar spectrum disorders. The comorbid medical, psychiatric and substance abuse problems associated with bipolar illness are examined in detail. Treatment interventions including pharmacologic, psychotherapeutic, and psychosocial are explained clearly and concisely. I would highly recommend this book for any clinician, therapist, etc. who works with bipolar patients. Informed lay people could also benefit from this book as well.