Its premiere widely praised for its readability and wealth of detail, Essential Allergy's second edition continues in the same tradition as a broad-based practical volume covering the whole of allergy. The text has a large number of short chapters accompanied by many illustrations, colour photographs, and diagrams (single or two-colour) and supported by summaries and headings. In this new edition each chapter is now prefaced by a 'key points' section. Because this is a clinical text written for those who already [should] have a significant understanding of the field, theory and pathophysiology are only included to support a particular clinical insight. This second edition has also added co-authors: Ronald Dahl, Professor Kristian Aarhus, Dr Soren Pedersen (a paediatrician in Kolding), and Professor Kristian Thestrup-Pederson (a dermatologist in Aarhusto). Moreover, the ENT expertise of the original author (Dr Niels Mygind) has been enhanced by his re-training as a chest physician. As a result of these additions, the book provides broader expert coverage in the same successful format.