This document summarizes the normal cellular components and histology of hematopoiesis. It describes the typical appearance of red blood cells, white blood cells like neutrophils, lymphocytes, and their precursors in bone marrow and peripheral blood smears. These include the progression from immature to mature cell forms. It also outlines the characteristics of other hematopoietic cells like platelets, megakaryocytes, eosinophils, basophils and plasma cells. Finally, it shows images of normal bone marrow and lymph node histology.