I just searched amazon for the title plus "paperback". Now that I look at it again, it says "by MAN (Author)" whereas the hard cover is "by Richard McElreath (Author)", so it's looking possibly scammy to me now, so caveat emptor...

I received the book today. I'm still not sure that it isn't a scam... The back cover is empty; otherwise, the quality is fine. I don't know if this is associated with Richard McElreath. Good luck to everyone.