A pleasure to read. Greely's style is clear, specific, and engaging. Part One is devoted to the biological foundations of the growing revolution in human reproduction, and for me it was both illuminating and enjoyable to read. Greely packs a lot of information into a relatively short space, synthesizing an impressive amount of information into a coherent whole centered around his concept of "Easy PGD.". He then turns to explore the path for the coming decades that he think will transform the way in which human beings in industrialized (i.e., affluent) societies will reproduce. I think things will move more slowly than Greely does, simply because things always seem to move more slowly than we think in the moment. (I remember watching the first U.S. moon landing in 1969 in a little village in Germany in the middle of the night, and it would have been hard to imagine that we wouldn't have colonies on the moon in twenty years. Similarly, after a decade of Concorde supersonic commercial flight, we are back to subsonic-only flight. Or the early promise of gene therapy, maturing decades after we expected.) Greely, nonetheless, plots a careful pathway into this (probably inevitable) future. Part Three deals with the ethical, legal, and policy implications of Easy PGD, and here Greely is at his best, illuminating without being pedantic, carefully showing why certain extremes are either impossible or highly undesirable, and then laying out the issues that we will face in dealing with the available possibilities. Greely doesn't get ahead of his data and does not try to solve all these issues, but he does present very careful examinations of the arguments that will leave the reader more informed and with a much more nuanced understanding of the contours of these issues.