As a long time sock knitter, I had looked for a book with good information on basics for toe up knitting, particularly heels for two socks at a time, on two circular needles. This was an impulse purchase, and probably one of the best I have ever made. The instructions, both cuff down and toe up, are superb and would be excellent for any level of knitter. I have already recommended it to friends.
Yes, you need to know basic knitting before starting the book, but I believe a sock novice could successfully use the simple patterns and learn along the way. The photography of the basics such as casting on, distribution of stitches, how to start knitting, etc. are very good and easy to follow. There are more complex socks for more advanced knitters and a nice variety of patterns.
The book is split with the first half being cuff down and the second toe up, so it is easy to find what you want. It is a clear read without idiotic commentary in the instructions.
If you know someone struggling to learn sock knitting, buy this book for them. (or at least suggest it!)
And even when I am not knitting, I enjoy the layout and writing...to read and think and plot my next pair!