The author has attempted to produce a highly illustrated book, aimed primarily at junior histopathologists, which, hopefully, will provide a clear and logical approach to the pathology of glomerular diseases and, at the same time, cover the requirements for Membership of the Royal College of Pathologists. The author trusts that trainees in other disciplines, particularly nephrology and general medicine, will also find this book useful, and that at least parts of it will be used by the more enthusiastic and enterprising undergraduates. As the main instrument used by the histopathologist is the light microscope, illustrations from it predominate; however, because immunofluorescence and electron microscopy are very important tools in the interpretation of glomerular diseases, photographs from these techniques are included when important and where appropriate. The text in this book is concise and didactic, the major emphasis being on good and relevant illustrations. Every chapter dealing with a pathological entity has sections devoted to light microscopy, immunofluorescence, electron microscopy and, with trainees in mind, differential diagnoses. In addition, because clinical correlations are considered very important in all aspects of pathology and particularly in glomerular diseases, there is also a paragraph entitled clinical features.