Cancer represents a large group of diseases hallmarked by an aberrant or abnormal proliferation of normal cells. As cancer is associated with a significant mortality rate, there is a large effort to identify the molecular basis for the different types of cancer so that preventative and treatment strategies can be improved. The PCR Primer Libraries listed below offer a comprehensive set of tools to evaluate cancer gene expression for a variety of cancer cell types. These gene lists were carefully culled from the up to date publicly available literature and databases. Cancer PCR arrays may be setup with these libraries at a very low cost enabling many replicates and sample numbers to be evaluated simulataneously.