This Atlas is a unique scientific publication. It includes major issues of up-to-date information about immunophenotype, morphology and the function of the main effectors of anti-tumor immunity set down in a well presented format. The Atlas comprises a large number of illustrations presenting schemes and original micrographs demonstrating morphological features and ultrastructure of immunocompetent cells at various stages of differentiation. A special section of the Atlas describes cellular tumor microenvironment and micro-anatomy of carcinomas. Several parts include data about killer cells and T-regulatory lymphocytes.