The last one was (https://www.econlib.org/open-borders-is-a-new-york-times-bestseller/), which sounds terribly impressive, until you realize that "Graphic Novel" is a pretty niche corner of the list. But it is something!

His next book is described on his homepage (http://www.bcaplan.com/). As far as I'm aware it is still due out in early 2023.

I will update the close of bidding once the release date of the book is known. It will probably close a few days after the book comes out, but before it is possible to have direct knowledge of the items on the NYT list.

Sep 2, 3:36pm: He recently stated that it's now slated to appear in the fall of 2023, unfortunately.

Close date updated to 2023-09-01 11:59 pm