Although admittedly it seems that the book itself is just cherry-picked awesome stuff from the Test Kitchen Empire. According to the back of the book this includes eight different books produced during the year, plus a television show.
So in theory, if you are consuming all that other Test Kitchen stuff, everything in this book would probably be old hat by now. But if, like me, you have only the vaguest recollection of having heard the phrase "America's Test Kitchen," then you will be delighted by this book. DELIGHTED I TELL YOU.