Collapse was released on July 6th, 2012. In the month or so leading up to its release I had made the decision to go exclusively with Amazon in the KDP Select program. I had done my homework, it seemed like the smart thing to do. Just before the release, I had several people ask me if they would be able to get Collapse on the Nook. Not wanting to disappoint them, I figured it wouldn’t hurt to make Collapse available on other formats until sales dropped low enough to make the switch to Select.