The Concise Manual of Hematology and Oncology is a practice-oriented manual of medical oncology and hematology for day-to-day use in caring for patients hematologic and neoplastic diseases. It is founded on the longstanding experience of a large specialized university department accustomed to having to provide reliable advice in a broad range of circumstances. We have deliberately chosen not to give a comprehensive review of the various subjects but have instead focused on practical methods which have proven to be useful in our experience, with special emphasis on standardizing chemotherapy protocols.