I read this book last year, it relies too much on Rushton and Kemp for me to take it too seriously, both of those figures have very dubious and speculative claims, I wouldn't' recommend it to any blank slatist normie.

However the book is very readable and does argue its point very well. I have much skepticism on recent out of Africa theory after reading it

some quotes and notes of it I made when I read it:

The OoA story is that allspecies of Homo, including even Heidi and the Neanderthals, evolved in Africa. Early man, e.g., erectus, migrated out of Africa, but did not evolve into modern man outside of Africa. The evolution of erectusinto sapienshappened only in Africa, by about 160,000 ya, most likely in NE Africa. That raises the immediate questions, “If modernman was in Africa 160,000 ya why are today’s Africans still primitive according to all the traits discussed in Section II?” Did present day Africans de-evolve from more advanced ancestors and become more primitive?

Another question that pops to mind is, “Why would tropically-adapted Africans leave Africa 65,000 ya when that was right in the middle of the first ice age (about 73,000 to 55,000 ya, pp 31-32), and large numbers of cold-adapted Eurasian hominids were moving south?”

1. what took them so long to migrate out? 10,000s of years not migrating & it's Hss.
2. M & N macro haplogroups are found in eurasians, OoA believe they coaslesced in africa, Doesn't it make more sense that this occured in eurasia?
3. if modern man evolved in africa why is modern s s african so primitive in a varity of traits compared to eurasians?
   1. the explanation that can still hold OoA is recent biological evolution (see John Hawk, Cochran, Nicholas Wade [what I personally believe])
4. why would tropical adapted people move during a ice age? cold adapted people were heading south. How many times did a southern kingdom beat a northern one? especially at a global scale? Very rare.
   1. the hypothesis usually presented is that Hss had language ability and the others did not.
5. why did the african erectus become Hss but not asian erectus? It's enviroment was more selected towards modern traits.
   1. why wouldn't language develop there?

The author also wrote a book on Austrian economics (The Pure Logic of Choice), AFAIK it is not online, it is probably a good book judging from his the writing style of this book. If your into that I recommend someone find it and upload it.