“Ancient documents described the symbol as an ambigram—ambi meaning “both”—signifying it was legible both ways. And although ambigrams were common in symbology— swastikas, yin yang, Jewish stars, simple crosses—the idea that a word could be crafted into an ambigram seemed utterly impossible.” CommonCrossesAncientSymbolsDocumentsBothYin YangSymbologySwastikaSwastikasAmbigramsLegibleJewish Stars Book:Angels & Demons Source: Angels & Demons