Types of ambigrams

i ) Rotational Ambigram :-
A design that presents several instances of words when rotated through a fixed angle. This is usually 180 °, but rotational ambigrams of other angless exist, for ex – 90° or 45°. The word spelled out from the alternative directions is often the same, but may be a different word to the initially presented form.
Its pictorial example is like this :-
vegasambigramfixed.png

ii ) Mirror Ambigrams :-
A design that can be read when reflected in mirror ususally as the same word or phrase or both ways. Ambigrams that form different words when viewed in the mirror are also known as glass door ambigrams, because they can be printed on a glass door to be read differently when entering or exiting.
Its pictorial example can be :-
ambigram-wiki.png

iii ) Figure ground :-
A design in which the spaces between the letters of one word forms another word.

iv ) Chain ambigram :-
A design where a word(words) are interlinked, forming a repeating chain. Letters are usually overlapped meaning that a word will start partway through another word. Sometimes chain ambigrams are presented in form of circles.

v ) Fractal ambigram :-
A version of space filling ambigrams where the tiled word branches form itself and then shrinks in a self-similar manner, forming a fractal.

vi ) 3- Dimensional ambigrams :-
A design where an object is presented that wil appear to read several letters or words when viewed from different angles. Such designs can be generated by using constructive solid geometry.

vii ) Natural ambigram :-
A natural ambigram is a word that possesses one or more of the above symmetries when written in it’s natural state, requiring no typographical styling.
for ex : dollop, suns, NON