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Eating disorders can profoundly affect the individual, family unit, and local community. Changes in the individual include disturbances in body perception, organ damage, and increased risk factors leading to ill-health in later years. The family unit is affected by the psychological burdens imposed by eating disorders, including increased anxiety and depression in siblings or spouses. There is also the cost burden to consider: for example, in some countries, without a free health service, family members or insurance underwriters are expected to pay for treatments. Local communities are saddled with poor productivity, reduced attainment, and discordant interactions with colleagues and friends. There is thus a fundamental requirement to adequately diagnose, treat, and manage those individuals with eating disorders. However, this is problematic as there are many types of eating disorders, which the American Psychiatric Association have recently categorized (DSM-5) into Anorexia Nervosa, Bulimia Nervosa, Binge Eating Disorder, Other Specified and Unspecified Feeding or Eating Disorders. The categorization of Binge Eating Disorders is new and the previous category of Eating Disorders Not Otherwise Specified has been removed from DSM-5. Nevertheless, in some circumstances, there is continual usage of old terminology, and some groups use their own categorizations. There are numerous types of instruments and questionnaires which are used for categorizing or studying eating disorders. Some have been rigorously scrutinized and tested, whereas others are new and may eventually become “gold standard” instruments. Treatment regimens are also varied as there are complex relationships between physiological, nutritional, and psychological facets of eating disorders. Treatment protocols can include nutritional supplements or psychobehavioral modifications but will of course depend on the consequences of the eating disorder. In some cases, organs are directly affected, growth is impacted, and fetuses compromised in utero. Treatment regimens can address the multiple concerns, involving both psychiatry and dietetics. It is thus apparent that there is a wide range of eating disorders, methods of diagnoses, and treatments. The impact of eating disorders are extensive. Thus, finding all the relevant information in a single coherent publication has hitherto been problematic since there is a wide range of material. This, however, is comprehensively addressed in Handbook of Eating Disorders which embraces a holistic approach. It has six main parts:

1. General Aspects, Overviews, and Setting the Scene
2. Anorexia Nervosa
3. Bulimia Nervosa
4. Binge Eating Disorder
5. Other Specified and Unspecified Feeding or Eating Disorders
6. Diagnosis, Delective Questionnaires, and Resources