It is my hope that subsequent volumes of the series will join this volume in assisting in the more complete understanding of the causes, diagnosis, and cell-based treatment of major human diseases and debilitating tissue/organ injuries. There exists a tremendous, urgent demand by the public and the scientific community to address to cancer diagnosis, treatment, cure, and hopefully prevention. Stem Cells are nature’s indispensable gift to multicellular organisms, including humans. The contents of the volume are divided into six subheadings: Stem Cell Culture, Bone Marrow Stem Cells, Mesenchymal Stem Cells, Reprogramming and Differentiation of Stem Cells, Treatment, and Transplantation for the convenience of the readers.