Hematology is a branch of science deals with study of blood, its components and changes it undergoes during illness. While blood banking is a science which deals with collecting, testing and transfusing blood and its products for replacement of lost blood. This book strives to provide the basic fundamental background knowledge by which a learner can be introduced to these practices and to serve as a resource for laboratory personnel and building up of a concept. This book will also be helpful for health care providers. The book can be considered as a source of information/ academic performance for students, and personnel's in the discipline of clinical pathology and laboratory medicine, and for physicians and laboratory practitioners. Color illustrations have been used throughout the book to accurately, realistically depict to provide clear image of subject. OBJECTIVES of the book: Students will learn about normal formation & function of various types of blood cells, coagulation mechanism & various factors that cause the significant changes in the no. of specific cells & related clinical conditions.Student will learn theoretical aspects of immuno-hematology and basic blood bank procedures.