The purpose of this book is to share information and knowledge on allergic disorders in children with everybody, especially parents. Allergies in children are a common and growing problem. From the author's experience, many parents lack correct information on allergy. This has led to wrong approaches in dealing with the problem, with some parents experimenting with all kinds of non-scientifically proven testing and treatments. Sometimes these treatments can be harmful for the child. The book comprises twelve chapters, each covering a specific aspect of allergy in children. The first part covers general issues, such as underlying mechanisms, allergens, and epidemiology of allergic diseases. In the second part, specific allergic diseases are covered. The book ends with considerations on diagnosis and treatment, and offers suggestions for future research on allergy in children. This book will provide useful information to the public, especially parents of allergic children. Based on current scientific information, the book should help allergic children to obtain optimal diagnosis and treatment of their allergic diseases.