My book used for a class?

I thought there was a brag thread around here somewhere but couldn't find it. Anyway, someone bought 25 print copies of one of my nonfiction books a day or two ago, which makes me think it's being used for a class. (Or it could have gotten a publicity boost somewhere or bought for gifts or who knows what).

Regardless, I get such a kick out of the sales spikes for any of my titles. Wish I could tell more. Once in a while I do get more info. on that from a review.

Or maybe someone was out of firewood. It's getting cold out there! Or... could it be my husband felt sorry for me and bought them himself?

Thanks for the well wishes, everyone.