The understanding of brain stem cell destiny decisions is provided in this book. Numerous studies on stem cells and regenerative medicine have focused on new therapeutic approaches for the treatment of numerous neurological illnesses throughout the past few decades. It has been noted that the current optimism over prospective stem cell therapies has spread from fresh insights into the biology of stem cells that influence specific cell destiny decisions. This book seeks to provide a fundamental understanding of the signaling pathways governing the capacity of differentiating into neurons during the time of development of diverse types of stem cells.