<p> As with most medical specialties, haematology has seen major changes since this book was first published in 1998. We now have greater understanding of the molecular biology of many diseases, both malignant and non-malignant. This new knowledge has helped us to develop more sensitive assays for many conditions, and has been taken into the clinic, with the engineering of new drugs, such as STI571 used in the treatment of chronic myeloid leukaemia, amongst others. </p> <p> As with the first edition, the intention has been to encompass all aspects of haematology but with perhaps a greater emphasis on basic science than previously. Readers will note that the writing team is almost identical to that for the first edition, which provides </p>

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