Now in its Fifth Edition, Crofton and Douglas's Respiratory Diseases has firmly established itself as the leading clinical textbook on diseases of the chest. Presented, for the first time, as a two-volume set, this classic text has been completely rewritten and greatly expanded. Extensive revisions ensure that these volumes present an up-to-date review of all aspects of lung disease . The contributions of some 18 leading authorities ensure that each area is comprehensively covered and new to this edition are chapters on the genetics of lung disease, smoking, air pollution, sleep apnoea, diving, lung transplantation and medico-legal aspects. The changes in content reflect the pace of change in the areas concerned not only in terms of understanding of the disease processes but also their treatment. The single chapter on asthma that appeared in previous editions, has now been expanded into three chapters covering epidemiology, mechanisms and management, reflecting the enormous research effort currently underway following a marked increase in the incidence of this disease in recent years. This new edition continues to provide an excellent reference both for the trainee and specialist in respiratory medicine, as well as the general physician. It will be extremely useful on the ward and in the office, where clinical problems arise and questions are asked which need clear answers.