Someone - I forget who - told me that "once you get a copy of your book, it never fails that the first page that you open it to is going to have a glaring error on it, so be prepared." I thought, "yeah, right."
So I just opened the book for maybe the second or third time to look something up, and sure enough - right there on the page was a massive, glaring, obvious, how-could-I-and-all-the-other-reviewers-miss-it error.
Ug. I need an aspirin.