I think I have that book also. I got it at his Falling Waters House years ago. Last year I bought one of the coloring books too. My niece in Los Angeles is an architect and I wanted to make her a quilt for her new baby. That was 2 years ago and I did not start it yet. I love his work too. There is a "corner" window in Falling Waters that opens in the library and I was really amazed at it. I like the stone floor in the living room too. What a brilliant mind! And to think we can make a quilt like his windows. Go for it, I will wait patiently to see the finished product. Love your fabrics.