bookish

Fond of reading or studying, especially said of someone lacking social skills as a result.

From a child I was fond of reading, and all the little money that came into my hands was ever laid out in books. […] This bookish inclination at length determined my father to make me a printer, though he had already one son (James) of that profession.

A Google search reveals Gendrot has no great internet or social media footprint, but in any case, he says, the police recruiters did not delve into his background. He did change his round spectacles to look less “bookish”.

Characterized by a method of expression generally found in books.

Besides, all my New York friends were in the negative, nightmare position of putting down society and giving their tired bookish or political or psychoanalytical reasons, […]

Obviously, neither Corneille nor the characters who laugh at excessively bookish speech avoid literary convention.