This is a volume on loneliness and what can be done to address its pain. While most books simply describe loneliness from one author’s point of view, this volume includes a comprehensive review of the literature and employs top researchers in the field discuss their own research findings, conclusions and clinical experience. It explores the relationship between loneliness and sexuality, loneliness and optimism, and parental loneliness during pregnancy and childbirth. It also addresses loneliness throughout the life cycle in children, adolescents, the elderly and disabled, leading to a variety of coping and therapeutic modalities aimed at helping those who suffer from loneliness in its various forms.