Asthma is one of the most important chronic disorders in the developed world. Evidence from around the world shows that the prevalence of asthma has increased considerably since 1975, and now affects around 7.2% of the world population. Understanding of the basic mechanisms involved in the pathogenesis of asthma has improved dramatically over the past 20 years. Along with this increase in basic scientific knowledge, randomised clinical trials have produced evidence to guide clinicians in how to manage patients with asthma. The book covers epidemiology, diagnosis and management, and takes a look at future developments. The authors highlight the under diagnosis of occupational asthma and emphasise the importance of effective patient education, particularly asthma action plans. There are ten clinical cases dealing with common diagnostic and management problems, frequently asked questions and appendices containing resources for patients and clinicians.