Hematology atlases are essential tools for mastering the field. They provide the schemas, outlines, maps, and graphic information necessary to arrive at a diagnosis. Most of the raw data used in making a diagnosis is from blood smears, bone marrow or lymph node aspirates and biopsies, chromosome structures, fluorescence-activated cell sorting of lymphocyte and other cell subsets, fluorescence in situ hybridization figures, gene arrays, physical findings, and radiographic findings. Analyzing and interpreting the data requires comparison of these primarily visual data with known patterns. It is no wonder, then, that there are so many color atlases in hematology.
Mehta P. Color Atlas of Clinical Hematology. JAMA. 2010;304(4):473-474. doi:10.1001/jama.2010.1038