While embryology has been an old interest, it is a very new science; the events of the first 6 days of life have been known only since the 1950's. This short calendar of the appointed 266 day internment is intended as a ""window into the womb"" from the first conjunction of the parent cells. At the end of a month the cell cluster is a fully formed half inch embryo, at the end of the second month a well-proportioned small scale baby can be seen, and this is a precise and graphic account of the capabilities, responses and development of the embryo through the process of birth with the collateral contributions of the mother (the function of the amniotic fluid; the placenta; etc.). It makes available some little known as well as only recently known information and there will be photographs to complete the preview. Still, it's hard to anticipate an audience- except perhaps the new young mothers recruited by natural childbirth who want to know everything before as well as during.