The most recent developments in hematopoietic stem cell research are presented in this volume, along with their clinical implications. The field of hematopoietic stem cell biology is rapidly advancing, and new ideas and concepts supported by fascinating new technologies captivated the interest and excitement of the participants of the meeting. The sharing of new ideas and technologies with other scientists represents an invaluable stimulus, particularly for the young investigators in the field. It is hoped that the spirit of the meeting will be carried forward to the readers of this volume and that its content will stimulate new and fruitful projects in the field of stem cell biology. The major topics covered are genetic and epigenetic regulation of stem cells, stem cell plasticity, stem cell regulation and self-renewal, and embryonic stem cells as well as malignant stem cell biology.