For such a short book, it felt like forever before he got to his main point. He sort of came at it from a very distant perspective, I suppose. I guess it's because he doesn't discuss the idea that overpopulation is a problem so much as look at those who hold the "overpopulation is a huge problem!" position and consider their underlying reasoning, which somehow I wasn't expecting.
It's not exactly news, for anyone who's looked into the issue at all, that "overpopulation" is an idea held by the rich and addressed to the poor, or that the "solution" always boils down to governments imposing their will on the poor and helpless, but perhaps this was less obvious in 1985, when this book was printed, I dunno.
I was surprised, in his appendix, that he said overpopulation is favored by the political right, since everyone I know who rages about it is very definitely to the left side. But that, again, may be due to the different times we are looking at -- I can imagine that people on the right in the 1960s believed that overpopulation was a real problem. But the right wingers I know now are opposed because they tend libertarian, and all the supposed "solutions" to overpopulation anymore boil down to government control, which they oppose.
If someone is still interested in the topic of overpopulation, despite the repeated failures of the Doomsayers' predictions, I would recommend something by Julian Simon or Jacqueline Kasun rather than this book. And if someone is determined to read everything recommended in James Schall's Another Sort of Learning, I'd move this book down on the list. This is the first of the books he recommends that I would just have soon skipped -- there've been others that were just as much review for me, but those I enjoyed on their own merits.
OTOH, as an introduction to the topic for someone who believes in the population bomb, it is short and a quick read and brings home some hard truths. But for anyone who thinks Paul Ehrlich disproved long past, and the whole concept shown as bankrupt, not much here.