While I'm normally not a fan of appeal to authority, knowing this is what moves this from "will try to remember to check this out when I wake tomorrow" (it's 23:04 here) to "will definitely check out tomorrow".

Also it being from Manning helps. It's difficult to find good books today, so easy to self publish or get reeled in by some paper mill that banks on people wanting to have a book on their resume. So have to have something to filter out signal in the noise.