Radiation Oncology and Radiotherapy, Part B, Volume 174 in the Methods in Cell Biology series, highlights advances in the field, with this new volume presenting interesting chapters on timely topics including CT-assisted focal irradiation of tumors in mice, Methods to preserve correct dosimetry in small animal irradiators, Monitoring TGFbeta signaling in irradiated tumors, Cytofluorometric characterization of the lymphoid compartment of irradiated tumors, Cytofluorometric characterization of the myeloid compartment of irradiated tumors, Mass cytometry to characterize the immune infiltrate of irradiated tumors, Characterization of the immune infiltrate in irradiated mouse tumor by multiplex immunofluorescence, and much more. Other chapters cover Methods to study FOXP3+CD8+ cells in irradiated bone metastases, Luminex-based characterization of cytokine signaling by irradiated tumors, Explant-based assessment of anticancer immunity in irradiated tumors, Pipeline to characterize the TCR repertoire of irradiated tumors, Pipeline to identify tumor neoantigens exposed by radiation, and more.