Cores represent initial reduction of toolstone in most flaked stone technologies. Cores exhibit wide variation in reduction techniques or culturally determined methods of manufacture, maintenance, reworking, and recycling. This variation in behavior is reflected in diagnostic technological attributes of the cores and in the flakes removed from the cores. Workshop participants will develop skills in recognizing core reduction technologies including unidirectional, multi-directional, bipolar, blade, and biface. In addition, analysis of stages of reduction, as well as the tools used in the reduction of cores will be examined.