changes in advertising

In my previous post I shared some interesting images that I "harvested" from a series of books collectively entitled "The Encyclopedia of Photography" (1962), which were given to me by fellow collagist Trish Craig. I've only just begun going through these books. Here's a very interesting image which had the following caption: "Humor in graphics advertising has proved to be successful in advancing sales of a product. Increasingly, the models used are 'interesting' rather than ideal". Gee, I wonder if the pendulum is swinging back to "the ideal" these days. BTW, The photographer who took this image was Edgar DeEvia, but the 'model' was not identified.