While there isn't a book, for offline reading until about two years ago, there used to be the print InFlyer magazine, which was exactly what you were looking for, except in monthly magazine form, rather than book form. But unfortunately, publisher Randy Petersen retired from publishing, and no one took it over. (Unfortunately, it didn't switch from print to online only, it simply stopped publishing totally.)

You might want to see if anyone has the last year or two's worth of issues that they're willing to sell used. That would probably be the closest you could come to a reasonably-recent book about the miles/points world.

In more general frugal travel, there was also Budget Travel magazine (originally by Frommer but bought by Lonely Planet) but it too seems to have bit the dust as far as I can tell.

As to recent books, a little searching on Amazon (starting with an old book) led me to realize there's a Christopher Elliott book called "How to Be the World's Smartest Traveler (and Save Time, Money, and Hassle)". I have no idea whether it's good or not, and I have mixed opinions on Christopher Elliot's columns I've seen in newspapers (you may have sort of the fact from the opinion in what he writes), but it's from March 2014, so from not quite so long ago:

https://www.amazon.com/Worlds-Smarte...dp/1426212739/