This book has a lot of authoritative opinion, and I'm sure that taking advice from it is sound. For anyone that's considering tuning their own compound bow, this book will certainly help you take the plunge.
However, with how complex a compound bow is, it would really help if there was more illustration. There's simply no good way to explain how the cams are operating, with words alone. The illustrations and photographs are pretty inefficient, especially depending on which bow he's referring to. The single cam setup is afforded no illustration which would show the path of the complete path of the cable and string. There's a one photograph of a black string, on a solid black cam for example, which doesn't really help anyone.
After reading it, I still come away unable to restring a single-cam bow (and this is supposed to be a user-friendly bow for tuning). I feel like I have to go rent/borrow/buy a second bow with the same string style, just so I can replicate it.
This book will certainly give you a little confidence in fiddling with your bow, but unfortunately, won't help you with a bow that's in need of serious tuning. I'm surprised Larry Wise took the time to go into detail on how to make a string, but avoided going into any detail on actually stringing the bow in question. I feel that knowing how to string your bow would be essential and come before making the string itself. It would at least be nice to know what to do with the string after you make it.
On top of all of this, the book really lacks any treasure trove of knowledge that can't be gained through a brief search through your favorite search engine. I was hoping I might find some useful information which the internet seems to lack, alas, that is not the case.