Living the Sabbath: Discovering the Rhythms of Rest and Delight (Norman Wirzba, Brazos Press, 2006)
Eat with Joy: Redeeming God's Gift of Food (Norman Wirzba, IVP Books, 2012)
These both used to be available (in Ebook format), and I have both in my library. I was reviewing what other Wirzba books to recommend on Feedbear and noticed these are no longer offered in the Logos store. Were they pulled prematurely on the road to becoming Logos Reader editions? It used to be that you kept the Ebook page up until the pre-pub page was ready to go live.
Not being able to buy the book at all in the interim seems unnecessary, unless it's to save you a few bucks by forcing an interested person to wait and buy the Logos Reader edition instead of getting the free upgrade. But you've got a ready sale in the hand, you might be giving up two in the bush. If you don't make that sale, that person might forget about it and not buy the book at all.
If there's some other reason why they were pulled, I'll add these two on Feedbear as requests to bring them back.