I know of it from the American tv version of the Office. One of the characters (Dwight Schrute) brings that book in to read to children and the other characters are horrified that it's real. Very funny stuff.
it's from the "Take your daughter to work day" episode. He reads Harry Potter to Jim and Pam at the farm. I've watched this show way too many times. An unhealthy amount of times. 😶