Mood disorders are a group of mental health problems that can strike anyone at any time. The most common mood disorders are depression, persistent depressive disorder, bipolar disorder, disruptive mood dysregulation disorder, premenstrual dysmorphic disorder, substance-induced mood disorders, and mood disorders caused by health problems. If your readers do not suffer with mood disorders, they most-likely know someone who does. Give them a comprehensive guidebook on this group of conditions. Readers will learn what specific conditions are, what causes them, how people live with them, and the latest information about treatment and prevention.