The most common type of therapy to treat depression is cognitive behavioral therapy, also known as CBT. 

For depression, Cognitive Behavioral Therapy (CBT) helps you identify and challenge the negative thought patterns and behaviors that keep you feeling down. A key part of the therapy is behavioral activation, which encourages you to schedule and engage in positive activities to improve your mood and energy. Ultimately, CBT teaches you practical skills to manage symptoms and build healthier habits, helping you break the cycle of depression.