I've been coveting this Prairie School Gem for quite some time now. It's been on my wishlist for at least 11 months and I finally decided to breakdown and pick up a copy via the Minneapolis Institute of Arts website. However, after doing some digging it turns out that the entire CD-ROM is accessible online at Unified Vision: The Architecture and Design of the Prairie School. Hands down, it's simply one of the best websites I've ever seen dedicated to a Prairie School structure. It is a visual treat that you should definitely spend time exploring.
Nevertheless, I'm still ordering a copy for posterity's sake. A wonderful complimentary text to this CD-ROM is Progressive Design in the Midwest: The Purcell-Cutts House and the Prairie School Collection at the Minneapolis Institute of Arts. However, the layout isn't as tasty.