A Book of Human Language is the second solo album by Los Angeles rapper Aceyalone. It was released on Project Blowed in 1998. The album was entirely produced by Mumbles.
Malik Singleton of Vibe described the album as "an uninhibited exhibition of lyric artistry laid over jazzy breakbeats and rare groove loops". Brian Coleman of CMJ New Music Monthly called it "one of the most intelligent albums" of the year.