Lex Luthor: The Unauthorized Biography

Lex Luthor: The Unauthorized Biography is a 48‑page one‑shot comic book published by DC Comics in 1989. Written by James D. Hudnall, with pencils by Eduardo Barreto and inks by Adam Kubert, it presents a noir‑tinged origin story of Superman's arch‑enemy Lex Luthor through the lens of a down‑and‑out reporter investigating his rise to power.

The comic book has been ranked #33 in Wizard Magazine's list of "100 Best Single Issue Comics Since You Were Born".

The cover design is similar to the cover of Donald Trump's autobiography The Art of the Deal.