This book is a contribution by various experts from around the world, including America, Europe, Africa and Asia who have worked in the fields of myeloid cell biology and myeloid leukemia pathogenesis. The book aims to provide reviews about new developments in the fields of basic science of acute myeloid leukemia (AML) and chronic myeloid leukemia (CML). This book includes the particulars of leukemia biology and pathogenesis and presents a comprehensive summary of the research activities in the same field.