Kate Atherley is beyond awesome, and so is her first book (may another follow it soon!).
I have to say, I absolutely agree. Kate's writing style is precise without being fussy. Little notes throughout the book help keep the tone light, but informative.
This is a great book because it goes beyond the learn-to-knit-and-purl genre, but doesn't specialize on a set of specific techniques, as many more advanced books do.
The photography is clear and the type is very easy to read. One of the more unique and interesting approaches Kate uses in the book what she calls her "small start" approach to learning and teaching. She uses miniature versions of entire projects (like socks) or just very simple versions of patterns (like cabled coffee cozies) to let the knitter get their feet wet on a technique and experience some success before launching on a larger project.
There are a few "full-size" patterns in the book, and they are very nice, but I would consider this, primarily, a technique book.
The topics covered are wide-ranging. Working from a pattern, tips the pattern might not cover, shaping, working in the round, socks, cables, lace, and colorwork are all explained, clearly and concisely.
If you are curious about (or scared of) any of these techniques, then this is the book for you.
The back of the book also has a great glossary of knitting terms and a bibliography to lead the curious on to more books.
You can buy the paper book with the digital version ($26.95 + shipping right now) or the digital-only version ($16.95 right now) here. I looked at a copy of the digital version, which was a pdf. It was clear and well-laid out. I think the pdf format was a good choice, since it should display on just about any computer or tablet, as far as I know.
If you already have a paper copy of the book, there is an errata sheet available online. People who have digital copies will get an update.
Overall, a great value and a valuable book, especially to relatively new knitters who are looking to take their skills to the next level.