noun
bibliophilia; bookworm
Refers to a person who loves books deeply, often to an excessive degree. A literary term, rarely used in everyday conversation.
彼は書淫で、部屋中が本で埋まっている。
He is a bookworm, and his room is filled with books.
noun
bibliomania; bibliomaniac
A more intense, almost pathological obsession with collecting or reading books. Even rarer than sense 1; mainly encountered in literary or historical contexts.
書淫ともなると、読むこと自体が目的になってしまう。
When one becomes a bibliomaniac, reading itself becomes the goal.