I have that book. Don't waste your money if you are a "purest" like I am. They did not follow the windows closely. They put colors where there were no colors on the windows and they changed all of the colors. I am making one for my brother who is an architect and I will have to redesign the quilt completely. If you are a beginner I would start very simply and expect the fabrics to give it the Arts and Crafts look.
Maybe this article will help.
http://digicoll.library.wisc.edu/cgi...v14n05&isize=M