Contemporary Geometric Beadwork
Here's their facebook page:
To see some of their images:
You can order from her website: http://katemckinnon.bigcartel.com/category/books, both this book and the pre-order for Volume II.
Just another reason to get my current projects done so I can start on these, once I get my hands on a book!! (Perfect example of why I leave projects unfinished to start others, obviously.)