Blood cells refer to the cells formed by hematopoiesis in the blood. They are also referred to as haematopoietic cells, hematocyte, etc. Hematology comprises the study of blood and blood cells along with the diseases related to it. The aim of this text is to familiarize the readers with all the important topics of hematology and its research. While understanding the long-term perspectives of the topics, the book makes an effort in highlighting their impact as a modern tool for the growth of the discipline. The various studies that are constantly contributing towards advancing technologies and evolution of this field are examined in detail in the text. It is an essential guide for both academicians and those who wish to pursue this discipline further.