Based on presentations by world-renowned investigators at the 73rd annual Cold Spring Harbor Symposium on Quantitative Biology, this volume reviews the latest advances in research on the control and regulation of stem cells. The topics covered include nuclear reprogramming, regulation of stem cell self-renewal and differentiation, the stem cell niche, and signaling and gene regulation in stem cells. Studies of embryonic stem cells and adult stem cells are covered, along with research shedding light on the roles of these cells in regeneration and cancer.