While the listed price for both is $75.00, the Top Shelf site lists 3 112 page volumes in a slipcover, while amazon only lists it as having 248 pages. The covers are are also shown as having different colors. Thanks for any info.
I (with a bit of extreme luck) managed to get a copy at an early signing, and Topshelf has the more accurate description. The Amazon picture shows the outside of the big purple box. The page count could easily be confusing, since each book is divided into chapters and each chapter has its own page count. As I understand it from the signing with Melinda Gebbie I went to, there is only one edition. Hope this helps.