Two weeks ago, I told you about a workbook I published. I was amazed and a bit delighted to discover that less than 16 hours after announcing it, the entire warehouse was sold out. (It peaked at #8 on the Amazon list).

I apologize to those of you that weren't able to get a set. And I doubly apologize to my beloved Canadian readers who were shut out for no apparent reason that I've been able to discern.

We've gone back to press for more and I'm pleased to announce that the workbooks are now available, and there's a special option for Canadians. I can't promise that these will last much longer than the last batch, but I've already ordered some more.

Shipping atoms is difficult, and crossing borders is more difficult still. I'm going to adjust as I go and hope to make the supply more reliable. It's doubly disappointing that you can't order when they run out of stock. We're working on that. If you discover an out of stock, please check back after a week…

I'm investigating new ways to make this more efficient going forward. I apologize again, and thank you for your good humor.