Both of Threadgill's initial Pi releases attracted critical approval. The
Allmusic review by Thom Jurek awarded the album 4 stars, stating, "This is deft footwork on the part of Threadgill as a leader, who lets his musicians shine and keeps them focused on the task at hand. ''Everybody's Mouth's a Book'' is as solid top to bottom as its companion release on Pi". The
All About Jazz review by Glenn Astarita stated, "Henry Threadgill's importance to modern jazz cannot be denied, as there are few composers who possess such a distinguishable methodology to music in general".
The Boston Phoenix{'}s Ed Hazell stated, "
Everybodys Mouth’s a Book, the Make a Move quintet’s second release, feels like a more traditional jazz album: the tempos are faster, and the instrumentation is closer to what you expect from a jazz quintet. But after the band’s first album, this one too defies expectation". ==Track listing==