More about ambigrams
From Wikipedia...An ambigram, also sometimes known as an inversion or flipscript, is a graphical figure that spells out one or more words not only in its form as presented, but also in another direction or orientation. The text spelled out in the other direction or orientation is often the same, but can also be a different text. Douglas R. Hofstadter describes an ambigram as a "calligraphic design that manages to squeeze two different readings into the selfsame set of curves." The term "ambigram" was first used to mean "ambiguous anagram" by Judith E. Bagai, a former editor of The Enigma, the official organ of The National Puzzlers' League.
