This book presents contributions from researchers and practitioners in the field of cybertherapy which not only illustrate the progress made in treating a variety of disorders, but also identify the challenges still faced in this field; such as the development of easy to use and more affordable hardware and software as well as the need to address potential side-effects and implement more controlled evaluation of cybertherapies as compared to more traditional treatments. The book, which will be of interest to health professionals and patients alike, is divided into four sections: Critical Reviews contains summaries and evaluations of emerging cyber therapy topics; Evaluation Studies includes chapters which undertake to solve some specific practical problems and assess the value of cybertherapy interventions; Original Research addresses new cybertherapy methods or approaches; finally, Clinical Observations explores case studies and research protocols with long-term potential.