Bibliophile (3.5e Trait)
From D&D Wiki
You are unable to resist reading.
Benefit: A character with the Bibliophile trait can read at quadruple the normal rate. They can determine the gist (Treat all languages as mundane, even magical script, and gain +4 to Decipher Script checks) of all writings, even if they cannot read the language.
Drawback: Any time the character sees a book, scroll, or any piece of printed material, they must make a will save (DC 18). If they fail, they will dedicate themselves to reading the material. If the writing is in another language, they will still attempt to read it. A character with the Bibliophile trait cannot go for more than two days without reading. If they do, they take a cumulative -1 per two days on all mental tasks.