I bought this book in '96 when I very first got an interest in guitar electronics and I've used it as a reference ever since. I decided to give it another read through the other day as I am trying to get back into the music electronics thing.
The first chapter, on reading schematics, is very helpful to the beginner, given that it discusses the components that make up a circuit, what they look like on a schematic and what they're used for. Not so much what they do and why, but that's not really the focus of this book.
In fact, this book is light on theory. You won't be able to design your own circuits, necessarily, nor will you understand why these projects do what they do. However, there is a lot to be gleaned, information wise, from reading this book. You can infer a lot from studying the projects. It's in the process of trying to build some of these projects that the trouble starts. The biggest complaint I have and that I've heard from others is that most if not all of the IC chips used in these projects are obsolete. This means that, right out of the gate, you're going to need to know or learn how to source work alike components. The projects work and are fun to build and can be very useful to you as a musician, but a lot more goes into it than might appear to be the case based upon reading this book.
Ever since I first read this, I've wanted to build the PAIA Electronics Quadrafuzz, one of the projects included. It's a rack mount fuzz effect that splits your signal into four bandwidths and allows you to adjust the fuzz for each. Pretty freaking cool if you're a fuzz geek like me. PAIA offers a kit for the Quadrafuzz (as well as other kits), which would be the only way I'd tackle that thing. Some day, I'll get that kit and build me a Quadrafuzz.
Aside from some outdated information, this book can be a useful resource for folks interested in music electronics.
i remembering having a hard time understanding the circuits in this book, so i think it is not the best as an intro book for guitar effects circuitry, etc.. that said, the circuits do cooler stuff than anderton's other book.