This is a *must* have book!
This books contains what I call "shot fundamentals". These are various shots which can apply to many different situations. Or learning about how the balls interact in various situations. Also clusters of balls and possible shots which can be made.
Learning the shots from this book is like extracting oil from a dried up oil well. It may appear that there is no oil, but by injecting steam, they can get a little more out of the well. Same thing with 99 critical shots. It may appear there are no shots on the table, but after learning these shots and especially learning the fundamentals of the shots and what makes the balls do certain things, you might just see a shot or two on the table.
Some of these shots are so obscure (like 5 clustered balls and the last in the chain of balls is wired to go into a pocket), that I make a point of calling the ball into the pocket (sometimes twice) and being darn sure my opponent understands I am calling *that* ball into that pocket.
They will accuse you of "lucking in the ball" if you don't make it clear beforehand which ball will go where. It is not luck!
The problem with this book (and with most books and videos) is that it is small, and difficult to stay open, not designed to take to the practice table. Many of the shots I already know and don't need to practice. So I may need to practice a shot on page 10, then page 14, then on pages 45 through 50, etc. I was spending too much time hunting through the book for the shots I wanted to practice.
So I made my own diagrams of the shots I wanted to practice and placed them in a 3 ring binder. Now I just flip the page and there is my next shot to practice. I also practice shots from other books, so the 3 ring binder contains the shots from all sources. (Shots which can not be described with words.)
Anyway practice and learn the shots from this book you are not familiar with. You may start seeing shots which you would not have noticed before. And you will begin to see your lesser skilled opponents by-passing easy to make shots (because they don't know).