An ambigram is an art and typographical design that presents words or phrases in a form that can be read as one or more words through multiple viewpoints or orientation. Ambigrams are a play of symmetry, visual perception, and optical illusion and they are grouped into a number of types: rotational, mirror image, figure-ground, chain, space-filling, spinonym, fractal, three-dimensional, oscillation, natural, symbiotogram, and multilingual.