An ambigram is a visual pun of a special kind: a calligraphic design having two or more (clear) interpretations as written words. One can voluntarily jump back and forth between the rival readings usually by shifting one’s physical point of view.
This is the ambigram of my name: Mattia.
The construction of ambigram is 180° rotational symmetry:
The ambivalence of the letters of ambigram:
