That’s the same book I have. she does a good job, and alot of what I suggested was inspired from her book. The only thing with that book, IMO, I was looking for more, I guess I had a good grip with the stuff she was showing and I expected to be over-whelmed and I wasn’t. There is only one book I can truly say I learned stuff from that was over-whelming, in a good way and that is the Lab book http://www.amazon.com/Photoshop-LAB-Color-Adventures-Colorspace/dp/0321356780
It has it’s own way of selecting and isolating, but it is really more about color. Great book, seems I mention it here alot 
Also, another fun book is Scott Kelby’s book on channels. Great for just picking up and looking through from time to time, layed out really well with an at a glance style.
-Jim