This book has been highly successful ever since it was first published in 1958. Emphasis throughout is placed on diagnosis and management, with particular stress on clinical problems as they confront the practitioner. The new fifth edition has been completely revised and updated to take account of important recent developments such as AIDS, lymphomas and leukaemias, and in order to contain the length, some sections of the book have been condensed. The "British Medical Journal said of the fourth edition, Although this book is clearly orientated to bedside problems, it never fails to explain the