It is important to assess mental illness seriously, to comprehend its nature, predict its long-term outcome and treat it with specific rather than generic treatment, such as pharmacotherapy. This book has three important sections, which cover introduction, evaluation and treatments methods of mental illness. Community-wide and cognitive-behavioral approaches are essential methods and should be incorporated to decrease the severity of symptoms of mental illness. Mental illness cannot be treated with one single kind of treatment method. Individual, community and socially-oriented treatments along with latest distance-writing technologies will allow a more effective and unified approach to fight mental illness world-wide.