This is okay.
For starters the Farrars are very very stuck on the way they do things, the way Gerald Gardner did things (they do work of his BOS) and that's pretty much what the book is about, their way, their experiences their beliefs. It can read like an autobiography at times. Which is fine but the title is a bit misleading.
I thought that by reading this I would have a base of knowledge that I needed to know to get started on a pagan way of life, but, sadly this was one of the first books I came across and it scared me off ritual/wiccan practice a little and confused me alot. There isn't much in the way of explaining what things are and why things are done, just how to do them. The chapters/explanations are long-winded and I found most of it hard to read and stay focused on, why? I'm not totally sure, they have alot of knowledge but, their way of explaining is just not fantastic and you get lost in all the technicalities of what their trying to say.
The second half of the book, "The Witches Way" is all over the place, for example, rituals are at the beginning and a chapter on the tools (which are needed for the rituals) are found much later in the book.
Now I'm a much much more experienced witch I've found so many pieces missing from their puzzle I can now see why I was confused and had no idea what to 'do'
However, I still use this book today as a resource for information.
It is good for an experienced witch who has a base of knowledge and training and can make up their own mind about what they want to use and what doesn't suit them, but it is not good for a seeker wanting to know what witchcraft is about. For example, they are very strict on working skyclad and say that it is necessary, but skyclad isn't necessary and doesn't have to be used at all (the info could be considered a bit outdated in places)
I have a huge respect for the Farrars and their level of knowledge and dedication but, if you're new to this, it's probably best to leave this book alone for a while and start with Raymond Bucklands 'Complete Book of Witchcraft' or something similar before getting into the technicalities of things