In the last 10 years, laboratory diagnostics for leukemias and lymphomas have rapidly evolved. A significant part of these advancements is due to the increasing understanding of the pathophysiological relationships in these diseases, as well as the development of laboratory techniques and equipment, including computer-assisted methods for evaluating findings. To achieve a comprehensive diagnosis, a targeted therapy, and ultimately the best possible prognosis, it is essential to use the available methods in a targeted and cost-effective manner. To meet these high demands and provide interested readers with competent assistance and current guidance for the routine diagnostics of leukemias and lymphomas, this book has been developed and is now being published after just two years.