Acute myeloid leukemia (AML) is an aggressive bone marrow cancer associated with high morbidity and mortality and most commonly affects older patient populations. In this book, the clinical presentation of acute myeloid leukemia are presented. Other chapters present the differences in the outcomes of two subtypes of core binding factor (CBF) acute myeloid leukemia (AML); examine the occurrence of the Philadelphia chromosome in AML with core binding factor leukemia; and therapeutic options of older patients with AML.