Psychiatry is a speciality of medical science that is concerned with the diagnosis, prevention and treatment of mental disorders. Various maladaptations related to mood, behavior, cognition and perceptions are included in this domain. The most common mode of psychiatric treatment is psychiatric medication and psychotherapy. The other contemporary practices include a wide variety of modalities such as assertive community treatment, community reinforcement and supported employment. The domain of psychiatry uses research in the field of neuroscience, psychology, medicine, biology, biochemistry and pharmacology. The disorders treated under this domain are broadly classified into personality disorders, mental illnesses and severe learning disabilities. Some of the specialities within this area are addiction psychiatry, neuropsychiatry, sleep medicine, child and adolescent psychiatry, social psychiatry, etc. The objective of this book is to give a general view of the different areas of psychiatry and its applications. It strives to provide a fair idea about this discipline and to help develop a better understanding of the latest advances within this field. This book is a vital tool for all researching and studying this field.