This book discusses various aspects related to mental illnesses. In this book, the main focus is on the various background factors that govern the understanding of public attitudes, immigration, stigma, and competencies surrounding mental illness. If we really comprehend the characteristics of mental illness, then we should be able to not just anticipate, but perhaps even to master it, irrespective of the form of mental illness in question. Knowing the extent of severity of the illness, will permit us to predict their long-term effects and help in decreasing its consequences and costs to society. The book makes an attempt to integrate theory, research data, and particular ways to deal with mental illness.