Today fewer than half of Sullivan's buildings remain. Nickel started this book in the 1950's but could never finish his work as he was increasingly distracted by the urgency of trying to save as many buildings as possible and document the buildings before they were gone. There was no real preservation movement and certainly little public interest in saving dirty old buildings at the time. Hence he and the people he gathered to his cause had very little success.
The book is very large weighing in at more than 8 pounds with over 470 pages and over 800 images. Along with the photos the book includes 108-page catalogue raisonne listing each of the 256 building commissions and projects, listing name, location, building size, cost and current status. Historic photographs and plans are also included where available and an essay on the building, with historic resources references and citations on each of the structures. In completing Nickel's book the associate authors sorted through tens of thousands of images. This is truly a spectacular book and a must have for any architecture fan.