Clark Lindsey points out this "new" book, but it's not clear whether it's really new, or just an update on the old one. SpacePac, the political action committee affiliated with the National Space Society, used to publish a book by this title back in the eighties and early nineties. I know this because I edited (and wrote parts of) it for a few years back then (I think that 1990 was the last year I was involved). So I'm curious if the current author simply picked up that ball, or if it's a new, unrelated work.