Many of my book art sculptures are represented in the US and internationally by the wonderful folks at Vamp & Tramp Booksellers.
http://www.vampandtramp.com/finepress/c/cranedesigns.html
A large catalog of works can be seen by scrolling down the pages on the right side of this blog. Look for Book Arts & Text Based Art, for pieces from specific years.
Most of these pieces are one-of-a-kind, with a few limited small-run editions.
I go more into my book art process and philosophy here.