?Y’all have to give IT to Dan Brown?

He used EVERYTHING inverted.

Ambigram :

An ambigram is a word or design that retains meaning when viewed from a different direction or perspective. Specifically, a rotational ambigram reads the same when viewed upside down, while a mirror or bilateral ambigram is one that reads the same backward and forward.

Like this…

Langdon is a SYMBOLOGIST according to Brown. He can decode everything and anything.

No Shit, Sherlock :o)