I must say that I have not been interested in her previous books. I was not impressed by what you can do with a mobius ring. I think the fascination is with the mobius idea rather than the thing as a knitted object. And as for knitting socks on circular needles, I have come to realize that I detest circular needles and will avoid them except when I have to knit 300 stitches back and fourth. Those cables give me the creeps.
This new book is another story. Cat has developed some novel and extremely elegant looking sock designs based on what she calls sock architecture. And you can see the built quality of some of these designs:
In addition to her unique and innovative designs, Cat offers tons of information about sock knitting including many charts indicating stitch numbers for all the sock parts in a lot of sizes. This enables you to design your own socks much like the Ann Budd books, but Cat's are somehow more sophisticated. This book is already in my Amazon cart, and I'm not returning the library book until it arrives.
As well as being a knitting innovator, Cat Bordhi is a self-publisher, again, at a sophisticated level. Her self-designed and -illustrated sock book is pretty and fun to read.