"Allergy Matters" is a specialized book that addresses the increasing incidence and prevalence of respiratory and food allergies in Western societies. In recent decades, various lifestyle factors such as hygiene practices, vaccinations, housing insulation, and dietary habits have emerged as potential causes for this rise. The associated direct and indirect costs, particularly in Central and Eastern European countries that have joined the European Union, are expected to increase significantly. The book, written by recognized experts in the field, provides a comprehensive overview of current approaches to allergy prevention. It adopts an integrated and multidisciplinary approach, covering a wide range of topics from fundamental research findings to practical implementation in society. The subjects discussed include the medical and molecular context, food production and novel foods, the living and working environment, as well as the societal aspects of allergies.