This document will have two sections: The first section will be a brief explanation of what depression is. Also, what is the percentage of depressed people in the United States. Additionally, several theories that are best suited to treat depressive disorder will be discussed in detail. Furthermore, the theories that will be briefly discussed are the following: Cognitive Therapy (CT), Cognitive Behavioral Therapy (CBT) and Interpersonal Therapy (IPT). The second section will be a summary of a counseling session the student had with a client and the treatment that was administered to alleviate and prevent the depression from returning. Depression is considered a mental disorder that can lead an individual to suicide, a fatal experiment. risk that can harm his life. Furthermore, a depressed individual is not motivated to do anything progressive in their life. That said, these individuals sometimes lose interest in activities that were once enjoyable, enter a phase where they lose their appetite, begin to overeat, lose focus on what they are trying to complete, and become indecisive. Furthermore, depression is a condition that makes an individual feel unhappy, lacking motivation for any activity that may affect his or her opinions, actions and well-being. Additionally, depressed individuals may sometimes feel sad, apprehensive, hopeless, destitute, worthless, awkward, short-tempered, and agitated. Furthermore, MDD is characterized by increased concentration and duration associated with severe symptoms. According to Wedding & Corsini (2014) states, “Physical illnesses, severe and acute stress, and chronic stress are also precipitating factors” (Pp. 240) of an individual……half of the article…. .. Behavioral therapy of depression: theory, treatment and empirical status. American Journal of Psychotherapy, 54(2), 257-62. Retrieved from http://search.proquest.com.library.capella.edu/docview/213172059?accountid=27965Moran, M. (2011). Neglected psychotherapy is effective in depression. Psychiatric News, 46(8), 1-1, 28. Retrieved from http://search.proquest.com.library.capella.edu/docview/864089271?accountid=27965Shaw, B. F. (1977). Comparison between cognitive therapy and behavioral therapy in the treatment of depression. Journal of Counseling and Clinical Psychology, 45(4), 543-551. doi:10.1037/0022-006X.45.4.543Wedding, D., & Corsini, R. (2014). Current psychotherapies. Belmont, CA: Brooks/ColeWilliamson, J. S. (2008). Depression. Phi Kappa Phi Forum, 88(1), 18-18, 24. Retrieved from http://search.proquest.com.library.capella.edu/docview/235187495?accountid=27965