The book is a practice sampler. It shows how to make a design, then you practice it on a quilt sandwich, then you piece all of the samples together. If you're confident with your rulers, you can use the book as design suggestions. Or instead of piecing the samples together, you can draw out the sections on your quilt top and try out each design in its proper place. I think the price is high because it's coming from Australia.
I made my own sampler for teaching the class.