Just for the record, violet/riga did finally respond to my question about the WorldCat link for The Da Vinci Code. Apparently Liz Lawley’s follow-up question on violet/riga’s page got more attention, so thanks, Liz!

Comments on the previous post noted the existing method for linking to books via ISBN (thanks, Richard!), and that’s a valid point. The WorldCat link is included on that Book Sources page, along with other ways to find the title in libraries, so it still serves as a good example of what I was saying in my presentation. violet/riga eventually found that, too, which makes more sense than her original notation.

Case closed.