

His chest is branded with an ambigram of the word "Illuminati".

The plot follows Harvard symbologist Robert Langdon, as he tries to stop the Illuminati, a legendary secret society, from destroying Vatican City with the newly discovered power of antimatter.ĬERN director Maximilian Kohler discovers one of the facility's physicists, Leonardo Vetra, murdered.

The "Illuminati Diamond" mentioned in the book is an ambigram of the four elements arranged in the shape of a diamond. The book also contains ambigrams of the words Earth, Air, Fire, and Water, which has served to bring the art of ambigrams to public attention by virtue of the popularity of the book. Besides the "Angels And Demons" and "Illuminati" designs, the title of the book is also presented as an ambigram on the hardcover book jacket (see illustration at right on this page), and on the inside cover of the paperback versions. The book contains several ambigrams created by real-life typographer John Langdon.
