Anamorfosi = ???
is a way of drawing something -according to the laws of perspective - from a very strange angle of view, so that it usually difficult to guess what the subject is, unless by looking at the picture from a similar angle
Holbein was famous for this kind of picture. Anyway, I imagine that my explanations are very poor, since a picture is worth a thousand words...Maybe you can try to find some example of that by a search in the web.