Isaac Asimov's face used to shill in sleazy ad

Scott Edelman sez, "I was surprised to spot Isaac Asimov's head bouncing around this morning in an ad for Pimsleur Approach. I don't recall him ever writing anything on that subject, or hearing him pontificate on it, and a Google search only turns up a single reference that connects the two — and that's for people who are equally as pissed off at seeing a great man misused by it as I am! A photo of Isaac Asimov is not a stock image that can be used to imply endorsement. I've written both companies to ask WTF is going on, and will let you know what I find out."

WTF? Why is Isaac Asimov's face being used to shill in a Huffington Post ad?

(Thanks, Scott!)