Do you see it? No? Ok, here is the cover to volume ix for comparison:
Everything is just as it should be. The volume covers philosophy from the French Revolution, represented by a distorted detail from the famous painting by Eugène Delacroix, "La liberté guidant le peuple":
|Click to enlarge|
And there is a photo of Jean-Paul Sartre (though not one I can find the original of--I suspect they added the dark glasses!):
Ok, now go look at the first cover again. See what's odd? There is an image of a half-mask such as might appear in a Venetian masque, and that guy with the pen and manuscript. Which philosopher is he? Kierkegaard, maybe? Nope, that is a very famous portrait of Beethoven by Joseph Karl Stieler from 1820:
Absolutely no doubt about it! They got the wrong guy! Beethoven may be many things, but he is emphatically not a post-Kantian idealist!