Mark Brodwin, Harvard-Smithsonian Center for Astrophysics Title: The IRAC Shallow Cluster Survey (ISCS): Evolution of Galaxy Clusters Over the Last 10 Gyr Abstract: The Spitzer Space Telescope has revolutionized the search for high redshift galaxy clusters by providing a window on the near-infrared peak of stellar emission in massive galaxies out well beyond redshift unity. I will introduce the IRAC Shallow Cluster Survey (ISCS), which has yielded the largest sample of stellar mass-selected clusters and groups, 335 in 7.25 deg^2, of which over 100 are at z>1. To date 20 of these high redshift clusters have been spectroscopically confirmed, out to a redshift of z = 1.49. The cluster autocorrelation function, measured for the first time to z > 1, further validates the selection method and indicates that mean mass of the full ISCS cluster sample is ~10^14 Msun. Additionally, cluster scaling relations observed at low redshift persist in this sample to least z = 1.5. As the progenitors of the most massive present-day clusters, the ISCS is a valuable sample in which to measure the evolution of massive cluster galaxies. A subsample of 24 clusters at 1 < z < 2 have been selected for extensive follow-up observations, including multiwavelength imaging from the X-ray to the millimeter and ground- and space-based spectroscopy. I will present an overview of the analysis of this sample to date including, among other results, strong evidence for substantial galaxy growth via both mergers and star formation since z = 1.5.