<p>The proposed book on progress in human reproduction will focus on recent developments and new approaches to study egg and sperm cells and embryo development and it will address the increasing demand for in vitro fertilization (IVF) and assisted reproductive technologies (ART) to overcome infertility problems that are encountered by an increasing number of couples worldwide. It will include 30-40 chapters written by experts in their specific fields to provide information on<i>in vitro</i> sperm and egg preparations; <i>in vitro</i> oocyte maturation; <i>in vitro</i> fertilization; <i>in vivo</i> and in vitro development of spermatozoa and oocytes; assessment of sperm and oocyte quality; cell and molecular biology of sperm and egg cells; cryopreservation of sperm, eggs, embryos, and reproductive tissue; Assisted Reproductive Technologies (ART) including intracytoplasmic sperm injection (ICSI); pre-implantation development; post-implantation development; genetic and epigenetic considerations; production of embryonic stem cells for patient-specific therapies; microinjection of specific factors for molecular therapies; and others.</p>