Hematopoietic Stem Cells brings together articles covering the biology of hematopoietic stem cells during embryonic development, reporting particular aspects of fly, fish, avian and mammalian models. Thus, this book allows a comparative overview of hematopoietic stem cell generation in the different classes, emphasizing the conserved trends in development. This book culminates with state-of –the art knowledge on hematopoietic development in human species and discussions of the most recent breakthroughs with relevance to both researchers and clinicians.